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Grand Seiko SBGA407
Case
- Diameter
- 40.2mm
- Material
- Stainless Steel
- Water resistance
- 100m
Crystal & dial
- Dial colour
- Light Blue
Movement
- Caliber
- Grand Seiko 9R65
- Type
- Spring Drive
- 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.
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In a nutshell
The Grand Seiko SBGA407 is a spring drive watch, with a 40.2mm stainless steel case, powered by the Grand Seiko 9R65 movement. Water resistance is rated to 100m. Manufacturer MSRP is $6,500 and the secondary market averages around $5,832 (roughly 90% of MSRP). The dial color is light blue.
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