A US-Exclusive with a unique, season-inspired twist
The SBGA427 is the latest addition to Grand Seiko's USA-Exclusive 'Seasons' (or 'Sekki') collection, highlighting the ever-changing nature of the seasons. Each timepiece, design and movement in the ongoing collection is a tribute to Japanese nature and expresses the natural and continuous flow of time. Reference SBGA427 is powered by Grand Seiko's 9R65 Spring Drive calibre, which combines the motive force of a mainspring found with the high precision of a quartz watch.
Exterior
- Case Material : Stainless steel
- Glass Material : Dual-curved sapphire
- Glass Coating : Anti-reflective coating on inner surface
- Case size : Diameter 39mm × Thickness 12.5mm
- Strap: Stainless steel bracelet & additional crocodile leather strap
Movement
- Caliber no. : 9R65 Instructions
- Movement Type : Spring Drive
- Power reserve : Approx. 72 hours(3 days)
- Accuracy : ±1 second per day / ±15 seconds per month (average)
Functions
- Water resistance : 10 bar
- Magnetic resistance : Equipped
- Other details / Features :
- 30 jewels
- Exhibition caseback
- Date display
- Power reserve display
- Screw case back
- Screw-down crown
- Hacking seconds function