{"id":248,"date":"2026-10-17T17:46:59","date_gmt":"2026-10-17T17:46:59","guid":{"rendered":"https:\/\/galosom.com\/vn\/?p=248"},"modified":"2026-10-18T11:43:32","modified_gmt":"2026-10-18T11:43:32","slug":"grand-seiko-caliber-9sa5-explained","status":"publish","type":"post","link":"https:\/\/galosom.com\/vn\/2026\/10\/17\/grand-seiko-caliber-9sa5-explained\/","title":{"rendered":"Gi\u1ea3i th\u00edch v\u1ec1 Caliber 9SA5 c\u1ee7a Grand Seiko: T\u1ea7n s\u1ed1 cao, th\u1eddi gian d\u1ef1 tr\u1eef d\u00e0i v\u00e0 \u00fd ngh\u0129a th\u1ef1c t\u1ebf"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/galosom.com\/wp-content\/uploads\/2026\/09\/2026-09-28_21-33-grand-seiko-9sa5-explained-image-01.jpg\" alt=\"Intricate mechanical watch gears illustrating Grand Seiko Caliber 9SA5 engineering\"><\/p>\n<p>Caliber 9SA5 c\u1ee7a Grand Seiko r\u1ea5t d\u1ec5 t\u00f3m t\u1eaft nh\u01b0ng l\u1ea1i kh\u00f3 gi\u1ea3i th\u00edch th\u1eadt r\u00f5. \u0110\u00e2y l\u00e0 b\u1ed9 m\u00e1y c\u01a1 t\u1ef1 \u0111\u1ed9ng ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 36.000 dao \u0111\u1ed9ng m\u1ed7i gi\u1edd, t\u00edch tr\u1eef n\u0103ng l\u01b0\u1ee3ng \u0111\u1ee7 ch\u1ea1y kho\u1ea3ng 80 gi\u1edd v\u00e0 s\u1eed d\u1ee5ng b\u1ed9 tho\u00e1t do h\u00e3ng t\u1ef1 ph\u00e1t tri\u1ec3n. Nh\u1eefng th\u00f4ng s\u1ed1 n\u00e0y r\u1ea5t \u1ea5n t\u01b0\u1ee3ng, nh\u01b0ng \u0111i\u1ec1u \u0111\u00e1ng ch\u00fa \u00fd h\u01a1n l\u00e0 c\u00e1ch Grand Seiko k\u1ebft h\u1ee3p ch\u00fang trong c\u00f9ng m\u1ed9t b\u1ed9 m\u00e1y. B\u1ed9 dao \u0111\u1ed9ng nhanh h\u01a1n th\u01b0\u1eddng ti\u00eau th\u1ee5 nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n, trong khi m\u1ee9c d\u1ef1 tr\u1eef n\u0103ng l\u01b0\u1ee3ng d\u00e0i h\u01a1n th\u01b0\u1eddng \u0111\u00f2i h\u1ecfi thi\u1ebft k\u1ebf ch\u1ea1y ch\u1eadm v\u00e0 ti\u1ebft ki\u1ec7m h\u01a1n.<\/p>\n<p>Ra m\u1eaft v\u00e0o n\u0103m 2020, b\u1ed9 m\u00e1y 9SA5 gi\u1ea3i quy\u1ebft m\u00e2u thu\u1eabn \u0111\u00f3 b\u1eb1ng m\u1ed9t thi\u1ebft k\u1ebf l\u1ea1i \u0111\u1ed3ng b\u1ed9, thay v\u00ec ch\u1ec9 t\u1eadp trung v\u00e0o m\u1ed9t b\u1ed9 ph\u1eadn n\u1ed5i b\u1eadt. B\u1ed9 tho\u00e1t Dual Impulse, hai h\u1ed9p c\u00f3t, b\u1ed9 dao \u0111\u1ed9ng t\u1ef1 do, d\u00e2y t\u00f3c cu\u1ed9n ngo\u00e0i, b\u1ed9 truy\u1ec1n b\u00e1nh r\u0103ng n\u1eb1m ngang v\u00e0 c\u01a1 c\u1ea5u l\u1ecbch ng\u00e0y t\u1ee9c th\u1eddi \u0111\u1ec1u g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean k\u1ebft qu\u1ea3 n\u00e0y. B\u00e0i vi\u1ebft gi\u1ea3i th\u00edch ch\u1ee9c n\u0103ng c\u1ee7a t\u1eebng \u0111\u1eb7c \u0111i\u1ec3m, nh\u1eefng g\u00ec ng\u01b0\u1eddi \u0111eo c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y trong th\u1ef1c t\u1ebf v\u00e0 nh\u1eefng tuy\u00ean b\u1ed1 c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1eb7t trong \u0111\u00fang b\u1ed1i c\u1ea3nh.<\/p>\n<h2>Th\u00f4ng s\u1ed1 Caliber 9SA5 t\u1ed5ng quan<\/h2>\n<ul>\n<li><strong>Lo\u1ea1i:<\/strong> b\u1ed9 m\u00e1y c\u01a1 t\u1ef1 \u0111\u1ed9ng, c\u00f3 th\u1ec3 l\u00ean c\u00f3t b\u1eb1ng tay<\/li>\n<li><strong>T\u1ea7n s\u1ed1:<\/strong> 36.000 dao \u0111\u1ed9ng m\u1ed7i gi\u1edd, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 5 Hz<\/li>\n<li><strong>D\u1ef1 tr\u1eef n\u0103ng l\u01b0\u1ee3ng:<\/strong> kho\u1ea3ng 80 gi\u1edd khi \u0111\u01b0\u1ee3c l\u00ean c\u00f3t \u0111\u1ea7y \u0111\u1ee7<\/li>\n<li><strong>Ch\u00e2n k\u00ednh:<\/strong> 47<\/li>\n<li><strong>Ch\u1ee9c n\u0103ng:<\/strong> gi\u1edd, ph\u00fat, gi\u00e2y, l\u1ecbch ng\u00e0y, d\u1eebng kim gi\u00e2y v\u00e0 chuy\u1ec3n l\u1ecbch ng\u00e0y t\u1ee9c th\u1eddi<\/li>\n<li><strong>Ti\u00eau chu\u1ea9n \u0111\u1ed9 ch\u00ednh x\u00e1c t\u0129nh:<\/strong> sai s\u1ed1 trung b\u00ecnh m\u1ed7i ng\u00e0y t\u1eeb -3 \u0111\u1ebfn +5 gi\u00e2y, theo <a href=\"https:\/\/www.grand-seiko.com\/\" target=\"_blank\" rel=\"noopener\">c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m do Grand Seiko<\/a> c\u00f4ng b\u1ed1<\/li>\n<li><strong>M\u1ee9c sai s\u1ed1 khi s\u1eed d\u1ee5ng th\u00f4ng th\u01b0\u1eddng:<\/strong> t\u1eeb -1 \u0111\u1ebfn +8 gi\u00e2y m\u1ed7i ng\u00e0y, theo nh\u00e0 s\u1ea3n xu\u1ea5t<\/li>\n<\/ul>\n<p>Hai m\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c n\u00e0y kh\u00f4ng m\u00e2u thu\u1eabn nhau. M\u1ee9c sai s\u1ed1 h\u1eb9p h\u01a1n \u0111\u01b0\u1ee3c \u0111o tr\u00ean b\u1ed9 m\u00e1y ch\u01b0a l\u1eafp v\u1ecf, trong c\u00e1c t\u01b0 th\u1ebf v\u00e0 nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t tr\u01b0\u1edbc khi xu\u1ea5t x\u01b0\u1edfng. Kho\u1ea3ng sai s\u1ed1 khi s\u1eed d\u1ee5ng th\u00f4ng th\u01b0\u1eddng t\u00ednh \u0111\u1ebfn nh\u1eefng y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed3ng h\u1ed3 c\u01a1 khi \u0111eo tr\u00ean c\u1ed5 tay, g\u1ed3m m\u1ee9c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng, nhi\u1ec7t \u0111\u1ed9, va \u0111\u1eadp, tr\u1ea1ng th\u00e1i l\u00ean c\u00f3t v\u00e0 t\u01b0 th\u1ebf \u0111\u1eb7t \u0111\u1ed3ng h\u1ed3 khi ngh\u1ec9.<\/p>\n<h2>V\u00ec sao b\u1ed9 m\u00e1y t\u1ea7n s\u1ed1 cao \u0111\u00f2i h\u1ecfi k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p<\/h2>\n<p>B\u1ed9 m\u00e1y ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 5 Hz ho\u00e0n th\u00e0nh m\u01b0\u1eddi n\u1eeda dao \u0111\u1ed9ng m\u1ed7i gi\u00e2y. Nh\u1edd \u0111\u00f3, kim gi\u00e2y nh\u00edch m\u01b0\u1eddi b\u01b0\u1edbc nh\u1ecf m\u1ed7i gi\u00e2y v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec1u ti\u1ebft c\u00f3 th\u1ec3 chia th\u1eddi gian th\u00e0nh nh\u1eefng kho\u1ea3ng nh\u1ecf h\u01a1n so v\u1edbi b\u1ed9 m\u00e1y 4 Hz th\u00f4ng th\u01b0\u1eddng. V\u1ec1 l\u00fd thuy\u1ebft, t\u1ea7n s\u1ed1 cao h\u01a1n c\u0169ng c\u00f3 th\u1ec3 gi\u00fap sai s\u1ed1 \u00edt b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u \u0111\u1ed9ng tho\u00e1ng qua, v\u00ec m\u1ed7i nh\u1ecbp t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t kho\u1ea3ng th\u1eddi gian ng\u1eafn h\u01a1n.<\/p>\n<p>Tuy nhi\u00ean, t\u1ea7n s\u1ed1 kh\u00f4ng \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c. M\u1ed9t chi\u1ebfc \u0111\u1ed3ng h\u1ed3 t\u1ea7n s\u1ed1 cao \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh k\u00e9m c\u00f3 th\u1ec3 ch\u1ea1y sai h\u01a1n m\u1ed9t chi\u1ebfc c\u00f3 t\u1ea7n s\u1ed1 th\u1ea5p h\u01a1n nh\u01b0ng \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh c\u1ea9n th\u1eadn. T\u0103ng t\u1ea7n s\u1ed1 c\u0169ng l\u00e0m t\u0103ng nhu c\u1ea7u n\u0103ng l\u01b0\u1ee3ng v\u00e0 c\u00f3 th\u1ec3 khi\u1ebfn vi\u1ec7c b\u00f4i tr\u01a1n, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n. V\u00ec v\u1eady, th\u00e0nh t\u1ef1u c\u1ee7a 9SA5 kh\u00f4ng ch\u1ec9 n\u1eb1m \u1edf t\u1ed1c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng. B\u1ed9 m\u00e1y duy tr\u00ec t\u1ea7n s\u1ed1 cao \u0111\u1ed3ng th\u1eddi k\u00e9o d\u00e0i m\u1ee9c d\u1ef1 tr\u1eef n\u0103ng l\u01b0\u1ee3ng v\u01b0\u1ee3t xa m\u1ee9c kho\u1ea3ng 55 gi\u1edd c\u1ee7a Caliber t\u1ea7n s\u1ed1 cao 9S85 \u0111\u1eddi tr\u01b0\u1edbc c\u1ee7a Grand Seiko.<\/p>\n<h2>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 tho\u00e1t Dual Impulse<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/galosom.com\/wp-content\/uploads\/2026\/09\/2026-09-28_21-33-grand-seiko-9sa5-explained-image-02.jpg\" alt=\"Close view of a mechanical escapement and gear train representing the 9SA5 Dual Impulse Escapement\"><\/p>\n<p>B\u1ed9 tho\u00e1t \u0111i\u1ec1u ti\u1ebft n\u0103ng l\u01b0\u1ee3ng t\u1eeb d\u00e2y c\u00f3t ch\u00ednh v\u00e0 truy\u1ec1n l\u1ef1c \u0111\u1ea9y \u0111\u1ec3 gi\u1eef cho b\u1ed9 dao \u0111\u1ed9ng ho\u1ea1t \u0111\u1ed9ng. Trong b\u1ed9 tho\u00e1t \u0111\u00f2n b\u1ea9y Th\u1ee5y S\u0129 th\u00f4ng th\u01b0\u1eddng, m\u1ed7i l\u1ef1c \u0111\u1ea9y \u0111\u01b0\u1ee3c truy\u1ec1n qua c\u00e0ng g\u1ea1t. B\u1ed9 tho\u00e1t Dual Impulse c\u1ee7a Grand Seiko s\u1eed d\u1ee5ng hai \u0111\u01b0\u1eddng truy\u1ec1n: theo m\u1ed9t h\u01b0\u1edbng, b\u00e1nh xe tho\u00e1t truy\u1ec1n l\u1ef1c \u0111\u1ea9y tr\u1ef1c ti\u1ebfp \u0111\u1ebfn b\u1ed9 dao \u0111\u1ed9ng; theo h\u01b0\u1edbng c\u00f2n l\u1ea1i, n\u0103ng l\u01b0\u1ee3ng truy\u1ec1n \u0111\u1ebfn b\u1ed9 dao \u0111\u1ed9ng gi\u00e1n ti\u1ebfp qua c\u00e0ng g\u1ea1t.<\/p>\n<p>Gi\u1ea3m s\u1ed1 b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac trong m\u1ed9t \u0111\u01b0\u1eddng truy\u1ec1n l\u1ef1c \u0111\u1ea9y c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng. Hi\u1ec7u qu\u1ea3 \u0111\u00f3 r\u1ea5t quan tr\u1ecdng v\u1edbi b\u1ed9 m\u00e1y c\u00f3 b\u1ed9 dao \u0111\u1ed9ng t\u1ea7n s\u1ed1 cao c\u1ea7n nh\u1eadn l\u1ef1c \u0111\u1ea9y th\u01b0\u1eddng xuy\u00ean. Grand Seiko ch\u1ebf t\u1ea1o c\u00e1c chi ti\u1ebft ph\u1ee9c t\u1ea1p, nh\u1eb9 c\u1ee7a b\u1ed9 tho\u00e1t b\u1eb1ng c\u00f4ng ngh\u1ec7 MEMS, m\u1ed9t quy tr\u00ecnh c\u00f3 th\u1ec3 t\u1ea1o ra h\u00ecnh d\u1ea1ng ba chi\u1ec1u ch\u00ednh x\u00e1c m\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u1eaft g\u1ecdt th\u00f4ng th\u01b0\u1eddng kh\u00f3 th\u1ef1c hi\u1ec7n.<\/p>\n<p>T\u00ean g\u1ecdi n\u00e0y c\u00f3 th\u1ec3 g\u00e2y nh\u1ea7m l\u1eabn. \u201cDual impulse\u201d kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 \u0111\u1ed3ng h\u1ed3 nh\u1eadn s\u1ed1 l\u1ef1c \u0111\u1ea9y g\u1ea5p \u0111\u00f4i b\u1ed9 m\u00e1y th\u00f4ng th\u01b0\u1eddng, c\u0169ng kh\u00f4ng khi\u1ebfn b\u1ed9 m\u00e1y mi\u1ec5n nhi\u1ec5m v\u1edbi hao m\u00f2n. T\u00ean g\u1ecdi n\u00e0y m\u00f4 t\u1ea3 vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c \u0111\u01b0\u1eddng truy\u1ec1n l\u1ef1c \u0111\u1ea9y tr\u1ef1c ti\u1ebfp v\u00e0 gi\u00e1n ti\u1ebfp. H\u1ec7 th\u1ed1ng v\u1eabn c\u1ea7n \u0111\u01b0\u1ee3c b\u00f4i tr\u01a1n \u0111\u00fang c\u00e1ch, c\u00e1c chi ti\u1ebft ph\u1ea3i s\u1ea1ch, h\u00ecnh h\u1ecdc ph\u1ea3i ch\u00ednh x\u00e1c v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o d\u01b0\u1ee1ng chuy\u00ean nghi\u1ec7p.<\/p>\n<h2>Hai h\u1ed9p c\u00f3t v\u00e0 m\u1ee9c d\u1ef1 tr\u1eef n\u0103ng l\u01b0\u1ee3ng 80 gi\u1edd<\/h2>\n<p>9SA5 s\u1eed d\u1ee5ng hai h\u1ed9p c\u00f3t \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed n\u1ed1i ti\u1ebfp. K\u1ebft h\u1ee3p l\u1ea1i, ch\u00fang t\u00edch tr\u1eef \u0111\u1ee7 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 \u0111\u1ed3ng h\u1ed3 ho\u1ea1t \u0111\u1ed9ng kho\u1ea3ng 80 gi\u1edd khi \u0111\u01b0\u1ee3c l\u00ean c\u00f3t \u0111\u1ea7y \u0111\u1ee7. Tr\u00ean th\u1ef1c t\u1ebf, qu\u00fd kh\u00e1ch c\u00f3 th\u1ec3 th\u00e1o \u0111\u1ed3ng h\u1ed3 v\u00e0o t\u1ed1i th\u1ee9 S\u00e1u v\u00e0 th\u01b0\u1eddng th\u1ea5y \u0111\u1ed3ng h\u1ed3 v\u1eabn ch\u1ea1y v\u00e0o s\u00e1ng th\u1ee9 Hai. K\u1ebft qu\u1ea3 c\u1ee5 th\u1ec3 ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ee9c \u0111\u1ed9 l\u00ean c\u00f3t v\u00e0 t\u00ecnh tr\u1ea1ng c\u1ee7a \u0111\u1ed3ng h\u1ed3.<\/p>\n<p>Hai h\u1ed9p c\u00f3t ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a l\u1eddi gi\u1ea3i. T\u0103ng dung l\u01b0\u1ee3ng c\u00f3t m\u00e0 kh\u00f4ng ki\u1ec3m so\u00e1t t\u1ed5n hao n\u0103ng l\u01b0\u1ee3ng s\u1ebd kh\u00f4ng t\u1ea1o ra s\u1ef1 k\u1ebft h\u1ee3p t\u01b0\u01a1ng t\u1ef1 gi\u1eefa th\u1eddi gian tr\u1eef c\u00f3t, t\u1ea7n s\u1ed1 dao \u0111\u1ed9ng v\u00e0 qu\u00e1n t\u00ednh b\u00e1nh l\u1eafc. B\u1ed9 tho\u00e1t hi\u1ec7u qu\u1ea3 c\u00f9ng h\u1ec7 th\u1ed1ng b\u00e1nh r\u0103ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf l\u1ea1i gi\u00fap n\u0103ng l\u01b0\u1ee3ng t\u00edch tr\u1eef truy\u1ec1n \u0111\u1ebfn b\u1ed9 ph\u1eadn \u0111i\u1ec1u ti\u1ebft. Grand Seiko c\u0169ng cho bi\u1ebft c\u1ea5u tr\u00fac n\u00e0y gi\u1ea3m t\u1ea3i cho c\u00e1c b\u00e1nh r\u0103ng, g\u00f3p ph\u1ea7n t\u0103ng \u0111\u1ed9 b\u1ec1n \u0111\u1ed3ng th\u1eddi cung c\u1ea5p m\u00f4-men xo\u1eafn c\u1ea7n thi\u1ebft cho b\u00e1nh l\u1eafc c\u00f3 qu\u00e1n t\u00ednh l\u1edbn h\u01a1n.<\/p>\n<p>Th\u1eddi gian tr\u1eef c\u00f3t n\u00ean \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 th\u1eddi gian \u0111\u1ed3ng h\u1ed3 ti\u1ebfp t\u1ee5c ch\u1ea1y, ch\u1ee9 kh\u00f4ng ph\u1ea3i cam k\u1ebft r\u1eb1ng sai s\u1ed1 s\u1ebd gi\u1eef nguy\u00ean trong su\u1ed1t kho\u1ea3ng th\u1eddi gian \u0111\u00f3. \u0110\u1ed3ng h\u1ed3 c\u01a1 c\u00f3 th\u1ec3 sai s\u1ed1 kh\u00e1c nhau khi m\u00f4-men xo\u1eafn c\u1ee7a d\u00e2y c\u00f3t gi\u1ea3m d\u1ea7n. N\u1ebfu qu\u00fd kh\u00e1ch mu\u1ed1n \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 ch\u00ednh x\u00e1c, vi\u1ec7c so s\u00e1nh k\u1ebft qu\u1ea3 h\u1eb1ng ng\u00e0y \u1edf tr\u1ea1ng th\u00e1i l\u00ean c\u00f3t t\u01b0\u01a1ng t\u1ef1 s\u1ebd h\u1eefu \u00edch h\u01a1n l\u00e0 \u0111\u00e1nh gi\u00e1 m\u1ed9t k\u1ebft qu\u1ea3 ri\u00eang l\u1ebb g\u1ea7n cu\u1ed1i th\u1eddi gian tr\u1eef c\u00f3t.<\/p>\n<h2>B\u00e1nh l\u1eafc kh\u00f4ng c\u00f3 ch\u1ed1t \u0111i\u1ec1u ch\u1ec9nh v\u00e0 d\u00e2y t\u00f3c c\u00f3 \u0111\u01b0\u1eddng cong ngo\u00e0i<\/h2>\n<p>Nhi\u1ec1u b\u1ed9 m\u00e1y \u0111i\u1ec1u ch\u1ec9nh sai s\u1ed1 b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i chi\u1ec1u d\u00e0i hi\u1ec7u d\u1ee5ng c\u1ee7a d\u00e2y t\u00f3c th\u00f4ng qua b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh c\u00f3 ch\u1ed1t. 9SA5 thay v\u00e0o \u0111\u00f3 s\u1eed d\u1ee5ng b\u00e1nh l\u1eafc kh\u00f4ng c\u00f3 ch\u1ed1t \u0111i\u1ec1u ch\u1ec9nh. D\u00e2y t\u00f3c co gi\u00e3n m\u00e0 kh\u00f4ng c\u1ea7n b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh th\u00f4ng th\u01b0\u1eddng, c\u00f2n c\u00e1c v\u00edt ch\u00ecm tr\u00ean v\u00e0nh b\u00e1nh l\u1eafc cho ph\u00e9p th\u1ee3 \u0111\u1ed3ng h\u1ed3 \u0111i\u1ec1u ch\u1ec9nh qu\u00e1n t\u00ednh v\u00e0 do \u0111\u00f3 \u0111i\u1ec1u ch\u1ec9nh sai s\u1ed1.<\/p>\n<p>C\u1ea5u tr\u00fac n\u00e0y c\u00f3 th\u1ec3 gi\u00fap h\u00ecnh h\u1ecdc \u1ed5n \u0111\u1ecbnh v\u00e0 tr\u00e1nh \u0111\u1ec3 \u0111\u1ea7u ngo\u00e0i c\u1ee7a d\u00e2y t\u00f3c \u0111i qua c\u00e1c ch\u1ed1t \u0111i\u1ec1u ch\u1ec9nh. \u0110i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 b\u1ed9 m\u00e1y kh\u00f4ng bao gi\u1edd c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh. Vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh ch\u1ec9 \u0111\u00f2i h\u1ecfi \u0111\u00fang quy tr\u00ecnh, thi\u1ebft b\u1ecb v\u00e0 k\u1ef9 n\u0103ng, thay v\u00ec d\u1ecbch chuy\u1ec3n m\u1ed9t kim ch\u1ec9 quen thu\u1ed9c.<\/p>\n<p>B\u1ed9 m\u00e1y n\u00e0y c\u0169ng gi\u1edbi thi\u1ec7u \u0111\u01b0\u1eddng cong ngo\u00e0i do Grand Seiko t\u1ef1 ph\u00e1t tri\u1ec3n. Thay v\u00ec n\u1eb1m ph\u1eb3ng \u1edf v\u00f2ng ngo\u00e0i, d\u00e2y t\u00f3c v\u01b0\u01a1n l\u00ean v\u00e0 cong qua ch\u00ednh n\u00f3. M\u1ed9t \u0111\u01b0\u1eddng cong ngo\u00e0i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t c\u00f3 th\u1ec3 gi\u00fap d\u00e2y t\u00f3c co gi\u00e3n \u0111\u1ed3ng t\u00e2m h\u01a1n, gi\u1ea3m sai s\u1ed1 theo v\u1ecb tr\u00ed. Grand Seiko cho bi\u1ebft c\u00e1c k\u1ef9 s\u01b0 \u0111\u00e3 m\u00f4 ph\u1ecfng h\u01a1n 80.000 h\u00ecnh d\u1ea1ng kh\u1ea3 thi tr\u01b0\u1edbc khi ch\u1ecdn c\u1ea5u tr\u00fac d\u00f9ng trong s\u1ea3n xu\u1ea5t. V\u1edbi ng\u01b0\u1eddi s\u1eed d\u1ee5ng, l\u1ee3i \u00edch d\u1ef1 ki\u1ebfn l\u00e0 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh h\u01a1n khi \u0111\u1ed3ng h\u1ed3 thay \u0111\u1ed5i t\u01b0 th\u1ebf trong ng\u00e0y.<\/p>\n<h2>B\u1ed1 tr\u00ed m\u1ecfng h\u01a1n, kh\u00f4ng ch\u1ec9 l\u00e0 b\u1ed9 m\u00e1y nh\u1ecf h\u01a1n<\/h2>\n<p>9SA5 s\u1eed d\u1ee5ng b\u1ed1 tr\u00ed h\u1ec7 th\u1ed1ng b\u00e1nh r\u0103ng n\u1eb1m ngang, gi\u00fap c\u00e1c linh ki\u1ec7n \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp tr\u00ean m\u1ed9t m\u1eb7t ph\u1eb3ng th\u1ea5p h\u01a1n. Nh\u1edd \u0111\u00f3, Grand Seiko c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u1ed9 d\u00e0y b\u1ed9 m\u00e1y so v\u1edbi ki\u1ebfn tr\u00fac t\u1ea7n s\u1ed1 cao tr\u01b0\u1edbc \u0111\u00e2y v\u00e0 gi\u00fap c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf linh ho\u1ea1t h\u01a1n khi t\u1ea1o ra nh\u1eefng chi\u1ebfc \u0111\u1ed3ng h\u1ed3 c\u00f3 tr\u1ecdng t\u00e2m th\u1ea5p h\u01a1n v\u00e0 d\u00e1ng v\u1ecf m\u1ecfng h\u01a1n.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y quan tr\u1ecdng v\u00ec \u0111\u1ed9 d\u00e0y c\u1ee7a v\u1ecf kh\u00f4ng ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 d\u00e0y c\u1ee7a b\u1ed9 m\u00e1y. Kh\u1ea3 n\u0103ng ch\u1ed1ng n\u01b0\u1edbc, h\u00ecnh d\u1ea1ng k\u00ednh, c\u1ea5u t\u1ea1o m\u1eb7t s\u1ed1, kim, n\u1eafp l\u01b0ng v\u00e0 thi\u1ebft k\u1ebf b\u00ean ngo\u00e0i \u0111\u1ec1u l\u00e0m t\u0103ng chi\u1ec1u cao. \u0110\u1ed3ng h\u1ed3 9SA5 v\u1eabn c\u00f3 th\u1ec3 t\u1ea1o c\u1ea3m gi\u00e1c ch\u1eafc ch\u1eafn, nh\u01b0ng c\u1ea5u tr\u00fac b\u00ean trong gi\u00fap v\u1ecf \u00f4m s\u00e1t c\u1ed5 tay h\u01a1n so v\u1edbi \u0111i\u1ec1u qu\u00fd kh\u00e1ch c\u00f3 th\u1ec3 h\u00ecnh dung t\u1eeb b\u1ea3ng th\u00f4ng s\u1ed1.<\/p>\n<h2>L\u1ecbch nh\u1ea3y t\u1ee9c th\u1eddi v\u00e0 c\u00e1ch v\u1eadn h\u00e0nh h\u1eb1ng ng\u00e0y<\/h2>\n<p>Caliber 9SA5 c\u00f3 c\u01a1 ch\u1ebf l\u1ecbch nh\u1ea3y t\u1ee9c th\u1eddi. Thay v\u00ec t\u1eeb t\u1eeb d\u1ecbch chuy\u1ec3n qua \u00f4 l\u1ecbch trong m\u1ed9t kho\u1ea3ng th\u1eddi gian d\u00e0i, ng\u00e0y s\u1ebd \u0111\u1ed5i nhanh v\u00e0o kho\u1ea3ng n\u1eeda \u0111\u00eam. C\u00e1ch hi\u1ec3n th\u1ecb n\u00e0y g\u1ecdn g\u00e0ng h\u01a1n v\u00e0 qu\u00e1 tr\u00ecnh chuy\u1ec3n ng\u00e0y \u00edt g\u00e2y ch\u00fa \u00fd h\u01a1n, d\u00f9 th\u1eddi \u0111i\u1ec3m chuy\u1ec3n ch\u00ednh x\u00e1c c\u00f3 th\u1ec3 kh\u00f4ng tr\u00f9ng ho\u00e0n to\u00e0n v\u1edbi 12:00 do vi\u1ec7c ch\u1ec9nh kim v\u00e0 dung sai c\u01a1 kh\u00ed c\u00f3 th\u1ec3 t\u1ea1o ra \u0111\u1ed9 l\u1ec7ch nh\u1ecf.<\/p>\n<p>Qu\u00fd kh\u00e1ch v\u1eabn n\u00ean xem l\u1ecbch l\u00e0 m\u1ed9t c\u01a1 c\u1ea5u ph\u1ee9c t\u1ea1p b\u1eb1ng c\u01a1 kh\u00ed. H\u00e3y l\u00e0m theo h\u01b0\u1edbng d\u1eabn d\u00e0nh ri\u00eang cho m\u1eabu \u0111\u1ed3ng h\u1ed3 v\u00e0 tr\u00e1nh ch\u1ec9nh nhanh ng\u00e0y trong kho\u1ea3ng th\u1eddi gian h\u1ea1n ch\u1ebf \u0111\u01b0\u1ee3c Grand Seiko n\u00eau r\u00f5. C\u00e1c linh ki\u1ec7n b\u00ean trong c\u1ee7a c\u01a1 ch\u1ebf l\u1ecbch c\u00f3 th\u1ec3 \u0111\u00e3 b\u1eaft \u0111\u1ea7u ho\u1ea1t \u0111\u1ed9ng ngay c\u1ea3 khi ng\u00e0y ch\u01b0a d\u1ecbch chuy\u1ec3n r\u00f5 r\u1ec7t. C\u1ed1 ch\u1ec9nh nhanh c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u01a1 ch\u1ebf.<\/p>\n<h2>\u0110i\u1ec1u ng\u01b0\u1eddi s\u1eed d\u1ee5ng th\u1ef1c s\u1ef1 c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/galosom.com\/wp-content\/uploads\/2026\/09\/2026-09-28_21-33-grand-seiko-9sa5-explained-image-03.jpg\" alt=\"Skeleton mechanical timepiece showing the gears and balance architecture discussed in the 9SA5 guide\"><\/p>\n<h3>Kim gi\u00e2y chuy\u1ec3n \u0111\u1ed9ng m\u01b0\u1ee3t h\u01a1n<\/h3>\n<p>M\u01b0\u1eddi nh\u1ecbp m\u1ed7i gi\u00e2y t\u1ea1o n\u00ean chuy\u1ec3n \u0111\u1ed9ng qu\u00e9t m\u1ea3nh v\u00e0 \u0111\u1ec1u v\u1ec1 m\u1eb7t th\u1ecb gi\u00e1c. Tuy v\u1eady, \u0111\u00e2y v\u1eabn l\u00e0 chu\u1ed7i nh\u1ecbp c\u01a1 h\u1ecdc r\u1eddi r\u1ea1c, ch\u1ee9 kh\u00f4ng ph\u1ea3i chuy\u1ec3n \u0111\u1ed9ng l\u01b0\u1edbt li\u00ean t\u1ee5c nh\u01b0 \u1edf Spring Drive. Quay video ch\u1eadm s\u1ebd cho th\u1ea5y r\u00f5 c\u00e1c nh\u1ecbp n\u00e0y.<\/p>\n<h3>Th\u1eddi gian tr\u1eef c\u00f3t h\u1eefu \u00edch cho d\u1ecbp cu\u1ed1i tu\u1ea7n<\/h3>\n<p>Th\u1eddi gian tr\u1eef c\u00f3t 80 gi\u1edd l\u00e0 m\u1ed9t trong nh\u1eefng l\u1ee3i \u00edch d\u1ec5 nh\u1eadn th\u1ea5y nh\u1ea5t. N\u1ebfu \u0111\u01b0\u1ee3c l\u00ean c\u00f3t \u0111\u1ee7, \u0111\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 ch\u1ea1y li\u00ean t\u1ee5c kho\u1ea3ng ba ng\u00e0y m\u00e0 kh\u00f4ng c\u1ea7n h\u1ed9p xoay \u0111\u1ed3ng h\u1ed3. Qu\u00fd kh\u00e1ch lu\u00e2n phi\u00ean s\u1eed d\u1ee5ng nhi\u1ec1u \u0111\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 v\u1eabn c\u1ea7n ch\u1ec9nh l\u1ea1i, nh\u01b0ng th\u1eddi gian tr\u1eef c\u00f3t d\u00e0i gi\u00fap gi\u1ea3m s\u1ed1 l\u1ea7n ph\u1ea3i l\u00e0m vi\u1ec7c \u0111\u00f3.<\/p>\n<h3>Hi\u1ec7u su\u1ea5t sai s\u1ed1 c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 theo th\u1eddi gian<\/h3>\n<p>M\u1ed9t l\u1ea7n so s\u00e1nh v\u1edbi \u0111\u1ed3ng h\u1ed3 tr\u00ean \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng n\u00f3i l\u00ean nhi\u1ec1u \u0111i\u1ec1u. H\u00e3y ghi l\u1ea1i c\u00f9ng m\u1ed9t m\u1ed1c th\u1eddi gian m\u1ed7i ng\u00e0y \u00edt nh\u1ea5t b\u1ea3y ng\u00e0y trong khi \u0111eo \u0111\u1ed3ng h\u1ed3 nh\u01b0 b\u00ecnh th\u01b0\u1eddng. Ghi ch\u00fa t\u01b0 th\u1ebf \u0111\u1eb7t \u0111\u1ed3ng h\u1ed3 qua \u0111\u00eam v\u00e0 vi\u1ec7c \u0111\u1ed3ng h\u1ed3 c\u00f3 n\u1eb1m ngo\u00e0i c\u1ed5 tay trong th\u1eddi gian d\u00e0i b\u1ea5t th\u01b0\u1eddng hay kh\u00f4ng. Xu h\u01b0\u1edbng t\u00edch l\u0169y s\u1ebd cho bi\u1ebft nhi\u1ec1u h\u01a1n nh\u1eefng dao \u0111\u1ed9ng t\u1eebng ng\u00e0y.<\/p>\n<h3>Ho\u00e0n thi\u1ec7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u00f4 b\u00e0y qua n\u1eafp l\u01b0ng trong su\u1ed1t<\/h3>\n<p>C\u00e1c c\u1ea7u m\u00e1y c\u00f3 nh\u1eefng \u0111\u01b0\u1eddng cong r\u1ed9ng l\u1ea5y c\u1ea3m h\u1ee9ng t\u1eeb n\u00fai Iwate v\u00e0 s\u00f4ng Shizukuishi, v\u1edbi b\u1ec1 m\u1eb7t s\u1ecdc v\u00e0 c\u00e1c c\u1ea1nh \u0111\u01b0\u1ee3c \u0111\u00e1nh b\u00f3ng quanh c\u1ea7u m\u00e1y v\u00e0 \u1ed5 ch\u00e2n k\u00ednh. Ng\u00f4n ng\u1eef thi\u1ebft k\u1ebf n\u00e0y kh\u00e1c v\u1edbi ki\u1ec3u c\u1ea7u m\u00e1y s\u1ecdc Geneva h\u1eb9p truy\u1ec1n th\u1ed1ng. Vi\u1ec7c thi\u1ebft k\u1ebf n\u00e0y c\u00f3 b\u1eaft m\u1eaft h\u01a1n hay kh\u00f4ng t\u00f9y thu\u1ed9c v\u00e0o c\u1ea3m nh\u1eadn, nh\u01b0ng ph\u1ea7n trang tr\u00ed l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong b\u1ea3n s\u1eafc c\u1ee7a b\u1ed9 m\u00e1y ch\u1ee9 kh\u00f4ng ph\u1ea3i chi ti\u1ebft th\u00eam v\u00e0o sau.<\/p>\n<h2>9SA5 v\u00e0 9S85: nh\u1eefng kh\u00e1c bi\u1ec7t \u0111\u00e1ng ch\u00fa \u00fd<\/h2>\n<p>C\u1ea3 hai b\u1ed9 m\u00e1y \u0111\u1ec1u l\u00e0 m\u00e1y t\u1ef1 \u0111\u1ed9ng Grand Seiko, ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 36.000 dao \u0111\u1ed9ng m\u1ed7i gi\u1edd. 9S85 l\u00e0 b\u1ed9 m\u00e1y ti\u1ec1n nhi\u1ec7m quan tr\u1ecdng, kh\u00f4ng ph\u1ea3i l\u1ef1a ch\u1ecdn l\u1ed7i th\u1eddi hay k\u00e9m h\u01a1n. B\u1ed9 m\u00e1y n\u00e0y c\u00f3 m\u1ee9c d\u1ef1 tr\u1eef n\u0103ng l\u01b0\u1ee3ng kho\u1ea3ng 55 gi\u1edd v\u00e0 s\u1eed d\u1ee5ng c\u1ea5u tr\u00fac m\u00e1y truy\u1ec1n th\u1ed1ng h\u01a1n.<\/p>\n<p>9SA5 n\u00e2ng m\u1ee9c d\u1ef1 tr\u1eef n\u0103ng l\u01b0\u1ee3ng l\u00ean kho\u1ea3ng 80 gi\u1edd, \u0111\u1ed3ng th\u1eddi b\u1ed5 sung b\u1ed9 tho\u00e1t Dual Impulse, hai h\u1ed9p c\u00f3t, b\u00e1nh l\u1eafc kh\u00f4ng ch\u1ed1t, d\u00e2y t\u00f3c cu\u1ed9n ngo\u00e0i \u0111\u1ed9c quy\u1ec1n, b\u1ed9 truy\u1ec1n ngang m\u1ecfng h\u01a1n v\u00e0 c\u01a1 ch\u1ebf l\u1ecbch ng\u00e0y nh\u1ea3y t\u1ee9c th\u1eddi. \u0110\u00e2y l\u00e0 nh\u1eefng c\u1ea3i ti\u1ebfn k\u1ef9 thu\u1eadt \u0111\u00e1ng k\u1ec3. Tuy nhi\u00ean, \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng t\u1ef1 \u0111\u1ed9ng khi\u1ebfn m\u1ecdi \u0111\u1ed3ng h\u1ed3 9SA5 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u0111\u00e1ng mua h\u01a1n: thi\u1ebft k\u1ebf v\u1ecf, gi\u00e1 b\u00e1n, kh\u1ea3 n\u0103ng b\u1ea3o d\u01b0\u1ee1ng, t\u00ecnh tr\u1ea1ng \u0111\u1ed3ng h\u1ed3 v\u00e0 s\u1edf th\u00edch c\u00e1 nh\u00e2n v\u1eabn l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh.<\/p>\n<h2>Nh\u1eefng \u0111i\u1ec1u c\u1ea7n c\u00e2n nh\u1eafc v\u1ec1 b\u1ea3o d\u01b0\u1ee1ng v\u00e0 s\u1eed d\u1ee5ng<\/h2>\n<p>M\u1ed9t b\u1ed9 m\u00e1y c\u00f3 thi\u1ebft k\u1ebf k\u1ef9 thu\u1eadt \u0111\u1eb7c bi\u1ec7t c\u1ea7n \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1ea3o d\u01b0\u1ee1ng ph\u00f9 h\u1ee3p. B\u1ed9 tho\u00e1t v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec1u ch\u1ec9nh kh\u00f4ng ch\u1ed1t kh\u00f4ng th\u00edch h\u1ee3p \u0111\u1ec3 qu\u00fd kh\u00e1ch t\u1ef1 t\u1eadp s\u1eeda ch\u1eefa t\u1ea1i nh\u00e0. N\u1ebfu \u0111\u1ed3ng h\u1ed3 ch\u1ea1y th\u1ea5t th\u01b0\u1eddng, m\u1ee9c d\u1ef1 tr\u1eef n\u0103ng l\u01b0\u1ee3ng ng\u1eafn b\u1ea5t th\u01b0\u1eddng, l\u00ean c\u00f3t b\u1ecb c\u1ea3n ho\u1eb7c b\u1ecb h\u01b0 h\u1ecfng do va \u0111\u1eadp, h\u00e3y t\u00ecm \u0111\u1ebfn \u0111\u01a1n v\u1ecb b\u1ea3o d\u01b0\u1ee1ng \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n ho\u1eb7c c\u00f3 chuy\u00ean m\u00f4n \u0111\u01b0\u1ee3c ch\u1ee9ng minh, v\u1edbi kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn \u0111\u00fang linh ki\u1ec7n v\u00e0 quy tr\u00ecnh.<\/p>\n<p>\u0110\u1eebng kh\u1eed t\u1eeb, ch\u1ec9nh t\u1ed1c \u0111\u1ed9 ho\u1eb7c m\u1edf v\u1ecf ch\u1ec9 v\u00ec k\u1ebft qu\u1ea3 trong m\u1ed9t ng\u00e0y n\u1eb1m ngo\u00e0i th\u00f4ng s\u1ed1 \u0111\u00e3 c\u00f4ng b\u1ed1. Tr\u01b0\u1edbc ti\u00ean, h\u00e3y x\u00e1c nh\u1eadn \u0111\u1ed3ng h\u1ed3 \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00ean c\u00f3t \u0111\u1ea7y \u0111\u1ee7, \u0111o th\u1eddi gian b\u1eb1ng thi\u1ebft b\u1ecb tham chi\u1ebfu \u0111\u00e1ng tin c\u1eady v\u00e0 theo d\u00f5i trong v\u00e0i ng\u00e0y. \u0110\u1ed9 sai l\u1ec7ch \u1ed5n \u0111\u1ecbnh s\u1ebd gi\u00fap k\u1ef9 thu\u1eadt vi\u00ean ch\u1ea9n \u0111o\u00e1n d\u1ec5 h\u01a1n so v\u1edbi nh\u1eadn x\u00e9t r\u1eb1ng \u0111\u1ed3ng h\u1ed3 \u201cth\u1ec9nh tho\u1ea3ng ch\u1ea1y nhanh\u201d.<\/p>\n<p>Sau khi m\u1edf v\u1ecf, c\u1ea7n ki\u1ec3m tra kh\u1ea3 n\u0103ng ch\u1ed1ng n\u01b0\u1edbc b\u1eb1ng thi\u1ebft b\u1ecb th\u1eed \u00e1p su\u1ea5t; ngo\u00e0i ra, n\u00ean ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 t\u00f9y theo c\u00e1ch s\u1eed d\u1ee5ng. B\u1ed9 m\u00e1y tinh vi kh\u00f4ng th\u1ec3 ng\u0103n h\u01a1i \u1ea9m x\u00e2m nh\u1eadp qua c\u00e1c gio\u0103ng \u0111\u00e3 l\u00e3o h\u00f3a ho\u1eb7c n\u00fam ch\u1ec9nh ch\u01b0a \u0111\u01b0\u1ee3c kh\u00f3a ch\u1eb7t.<\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>Caliber 9SA5 c\u00f3 ph\u1ea3i l\u00e0 b\u1ed9 m\u00e1y Spring Drive kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. \u0110\u00e2y l\u00e0 b\u1ed9 m\u00e1y t\u1ef1 \u0111\u1ed9ng ho\u00e0n to\u00e0n c\u01a1 h\u1ecdc, \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng b\u00e1nh l\u1eafc, d\u00e2y t\u00f3c v\u00e0 b\u1ed9 tho\u00e1t. Spring Drive s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng \u0111i\u1ec1u ch\u1ec9nh kh\u00e1c, g\u1ed3m b\u00e1nh xe tr\u01b0\u1ee3t v\u00e0 b\u1ed9 tham chi\u1ebfu \u0111i\u1ec7n t\u1eed.<\/p>\n<h3>9SA5 c\u00f3 nh\u1ecbp m\u1ed7i gi\u00e2y m\u01b0\u1eddi l\u1ea7n kh\u00f4ng?<\/h3>\n<p>B\u1ed9 m\u00e1y t\u1ea1o ra m\u01b0\u1eddi dao \u0111\u1ed9ng, hay n\u1eeda chu k\u1ef3 dao \u0111\u1ed9ng, m\u1ed7i gi\u00e2y. Th\u00f4ng s\u1ed1 n\u00e0y c\u0169ng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n l\u00e0 36.000 dao \u0111\u1ed9ng m\u1ed7i gi\u1edd ho\u1eb7c 5 Hz.<\/p>\n<h3>\u0110\u1ed3ng h\u1ed3 9SA5 c\u00f3 th\u1ec3 ch\u1ea1y su\u1ed1t cu\u1ed1i tu\u1ea7n kh\u00f4ng?<\/h3>\n<p>M\u1ee9c d\u1ef1 tr\u1eef kho\u1ea3ng 80 gi\u1edd \u0111\u1ee7 \u0111\u1ec3 \u0111\u1ed3ng h\u1ed3 ch\u1ea1y qua nhi\u1ec1u kho\u1ea3ng th\u1eddi gian t\u1eeb t\u1ed1i th\u1ee9 S\u00e1u \u0111\u1ebfn s\u00e1ng th\u1ee9 Hai, n\u1ebfu l\u00fac \u0111\u1ea7u \u0111\u1ed3ng h\u1ed3 \u0111\u01b0\u1ee3c l\u00ean c\u00f3t g\u1ea7n \u0111\u1ea7y. Th\u1eddi gian ch\u1ea1y th\u1ef1c t\u1ebf thay \u0111\u1ed5i t\u00f9y theo m\u1ee9c l\u00ean c\u00f3t ban \u0111\u1ea7u v\u00e0 t\u00ecnh tr\u1ea1ng b\u1ed9 m\u00e1y.<\/p>\n<h3>\u0110\u1ed3ng h\u1ed3 t\u1ea7n s\u1ed1 cao c\u00f3 ph\u1ea3i l\u00fac n\u00e0o c\u0169ng ch\u00ednh x\u00e1c h\u01a1n kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. T\u1ea7n s\u1ed1 cao h\u01a1n c\u00f3 th\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu tr\u01b0\u1edbc nh\u1eefng x\u00e1o tr\u1ed9n ng\u1eafn v\u00e0 cho ph\u00e9p chia nh\u1ecf th\u1eddi gian ch\u00ednh x\u00e1c h\u01a1n, nh\u01b0ng \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1ef1c t\u1ebf c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf, hi\u1ec7u ch\u1ec9nh, ch\u1ea5t b\u00f4i tr\u01a1n, v\u1ecb tr\u00ed, nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 hao m\u00f2n.<\/p>\n<h3>C\u00f3 th\u1ec3 l\u00ean c\u00f3t b\u1eb1ng tay cho 9SA5 kh\u00f4ng?<\/h3>\n<p>C\u00f3. \u0110\u00e2y l\u00e0 \u0111\u1ed3ng h\u1ed3 t\u1ef1 \u0111\u1ed9ng c\u00f3 kh\u1ea3 n\u0103ng l\u00ean c\u00f3t b\u1eb1ng tay. H\u00e3y xoay n\u00fam nh\u1eb9 nh\u00e0ng v\u00e0 d\u1eebng l\u1ea1i n\u1ebfu n\u00fam c\u00f3 c\u1ea3m gi\u00e1c s\u1ea1n ho\u1eb7c b\u1ecb c\u1ea3n b\u1ea5t th\u01b0\u1eddng; \u0111\u1ed3ng h\u1ed3 t\u1ef1 \u0111\u1ed9ng th\u01b0\u1eddng kh\u00f4ng d\u1eebng c\u1ee9ng khi \u0111\u00e3 l\u00ean c\u00f3t \u0111\u1ea7y \u0111\u1ee7.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>Grand Seiko Caliber 9SA5 \u0111\u00e1ng ch\u00fa \u00fd v\u00ec gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c nhi\u1ec1u v\u1ea5n \u0111\u1ec1 c\u1ea1nh tranh trong c\u00f9ng m\u1ed9t h\u1ec7 th\u1ed1ng. B\u1ed9 dao \u0111\u1ed9ng t\u1ea7n s\u1ed1 cao cho ph\u00e9p chia th\u1eddi gian th\u00e0nh nh\u1eefng kho\u1ea3ng nh\u1ecf h\u01a1n, trong khi b\u1ed9 tho\u00e1t Dual Impulse v\u00e0 hai h\u1ed9p c\u00f3t gi\u00fap cung c\u1ea5p m\u1ee9c d\u1ef1 tr\u1eef n\u0103ng l\u01b0\u1ee3ng kho\u1ea3ng 80 gi\u1edd. B\u1ed9 dao \u0111\u1ed9ng kh\u00f4ng c\u00f3 ch\u1ed1t ch\u1ec9nh v\u00e0 d\u00e2y t\u00f3c cu\u1ed9n ngo\u00e0i h\u01b0\u1edbng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec1u v\u1ecb tr\u00ed, c\u00f2n b\u1ed9 b\u00e1nh r\u0103ng ph\u1eb3ng h\u01a1n gi\u00fap t\u1ed1i \u01b0u c\u00e1ch b\u1ed1 tr\u00ed. Kh\u00f4ng m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m ri\u00eang l\u1ebb n\u00e0o \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng gi\u1eef gi\u1edd ho\u00e0n h\u1ea3o, nh\u01b0ng khi k\u1ebft h\u1ee3p, ch\u00fang khi\u1ebfn 9SA5 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng v\u00ed d\u1ee5 ti\u00eau bi\u1ec3u nh\u1ea5t v\u1ec1 thi\u1ebft k\u1ebf b\u1ed9 m\u00e1y c\u01a1 hi\u1ec7n \u0111\u1ea1i, t\u1eadp trung v\u00e0o c\u1ea3 hi\u1ec7u n\u0103ng l\u1eabn t\u00ednh ti\u1ec7n d\u1ee5ng h\u1eb1ng ng\u00e0y.<\/p>\n<p class=\"galosom-related\"><strong>B\u00e0i \u0111\u1ecdc li\u00ean quan:<\/strong> <a href=\"https:\/\/galosom.com\/vn\/2026\/10\/17\/grand-seiko-spring-drive-explained\/\">T\u00ecm hi\u1ec3u v\u1ec1 Spring Drive c\u1ee7a Grand Seiko: C\u00e1ch ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u0111i\u1ec3m kh\u00e1c bi\u1ec7t<\/a><\/p>\n<p class=\"galosom-related-shop\">Mu\u1ed1n gi\u1eef \u0111\u1ed3ng h\u1ed3 c\u01a1 ho\u1ea1t \u0111\u1ed9ng trong th\u1eddi gian kh\u00f4ng \u0111eo? Kh\u00e1m ph\u00e1 c\u00e1c <a href=\"https:\/\/galosom.com\/vn\/watch-winders\/\">h\u1ed9p xoay \u0111\u1ed3ng h\u1ed3 t\u1ef1 \u0111\u1ed9ng<\/a> c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Caliber 9SA5 c\u1ee7a Grand Seiko r\u1ea5t d\u1ec5 t\u00f3m t\u1eaft nh\u01b0ng l\u1ea1i kh\u00f3 gi\u1ea3i th\u00edch th\u1eadt r\u00f5. \u0110\u00e2y l\u00e0 b\u1ed9 m\u00e1y c\u01a1 t\u1ef1 \u0111\u1ed9ng ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 36.000 dao \u0111\u1ed9ng m\u1ed7i gi\u1edd, t\u00edch tr\u1eef n\u0103ng l\u01b0\u1ee3ng \u0111\u1ee7 ch\u1ea1y kho\u1ea3ng 80 gi\u1edd v\u00e0 s\u1eed d\u1ee5ng b\u1ed9 tho\u00e1t do h\u00e3ng t\u1ef1 ph\u00e1t tri\u1ec3n. Nh\u1eefng th\u00f4ng s\u1ed1 &#8230; <a title=\"Gi\u1ea3i th\u00edch v\u1ec1 Caliber 9SA5 c\u1ee7a Grand Seiko: T\u1ea7n s\u1ed1 cao, th\u1eddi gian d\u1ef1 tr\u1eef d\u00e0i v\u00e0 \u00fd ngh\u0129a th\u1ef1c t\u1ebf\" class=\"read-more\" href=\"https:\/\/galosom.com\/vn\/2026\/10\/17\/grand-seiko-caliber-9sa5-explained\/\" aria-label=\"\u0110\u1ecdc th\u00eam v\u1ec1 Gi\u1ea3i th\u00edch v\u1ec1 Caliber 9SA5 c\u1ee7a Grand Seiko: T\u1ea7n s\u1ed1 cao, th\u1eddi gian d\u1ef1 tr\u1eef d\u00e0i v\u00e0 \u00fd ngh\u0129a th\u1ef1c t\u1ebf\">\u0110\u1ecdc ti\u1ebfp<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-248","post","type-post","status-publish","format-standard","hentry","category-uncategorized","has-galosom-content-thumbnail"],"_links":{"self":[{"href":"https:\/\/galosom.com\/vn\/wp-json\/wp\/v2\/posts\/248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/galosom.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/galosom.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/galosom.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/galosom.com\/vn\/wp-json\/wp\/v2\/comments?post=248"}],"version-history":[{"count":2,"href":"https:\/\/galosom.com\/vn\/wp-json\/wp\/v2\/posts\/248\/revisions"}],"predecessor-version":[{"id":789,"href":"https:\/\/galosom.com\/vn\/wp-json\/wp\/v2\/posts\/248\/revisions\/789"}],"wp:attachment":[{"href":"https:\/\/galosom.com\/vn\/wp-json\/wp\/v2\/media?parent=248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/galosom.com\/vn\/wp-json\/wp\/v2\/categories?post=248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/galosom.com\/vn\/wp-json\/wp\/v2\/tags?post=248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}