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Grand Seiko SBGA413
Case
- Diameter
- 40mm
- Thickness
- 12.8mm
- Lug-to-lug
- 47mm
- Lug width
- 21mm
- Material
- Titanium
- Water resistance
- 100m
Crystal & dial
- Crystal
- Sapphire
- AR coating
- Yes
Movement
- Caliber
- Grand Seiko 9R65
- Type
- Spring Drive
- Power reserve
- 72h
- Hacking
- No
- Hand-winding
- No
- Complications
- Time only
Grand Seiko
Grand Seiko's Spring Drive caliber combines a mechanical mainspring with an electronic regulator to achieve a perfectly smooth gliding seconds hand and accuracy of plus or minus 1 second per day. The Tri-synchro regulator uses the energy of the mainspring to generate electricity that powers the quartz oscillator and IC, eliminating the need for a battery. A 72-hour power reserve and 30 jewels make it one of the most technologically unique movements in horology.
Design language
- Case shape
- round
- Dial style
- textured
- Sub-dials
- 1
- Bezel
- fixed
- Bracelet
- lug-attached
- Hands
- dauphine
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SBGA413 collection · 21 watches
2 colorways
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Grand Seiko SBGA413 owners and reviewers widely praise its captivating dial, particularly its subtle artistry, and the mesmerizing Spring Drive movement's reliability and unparalleled mechanical accuracy, with some noting their Spring Drive watches run within half a second per day. The 40mm titanium case, featuring intricate geometries and a satin brush finish, is also highlighted, as are the Zaratsu-polished surfaces. Legibility is considered excellent, even with silver hands on the pink dial. On balance, owners and reviewers rate the Grand Seiko SBGA413 highly for its beautiful dial and the Spring Drive movement's accuracy and refinement.
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