Case Material : 18k yellow gold Glass Material : Dual-curved sapphire crystal Glass Coating : Anti-reflective coating on inner surface Case size : Diameter 38.5mm Lug-to-lug 43.7mm Thickness 10.2mm Band Material : Crocodile leather Clasp type : Three-fold clasp with push button release
Caliber no. : 9R31 Power reserve : Approx. 72 hours(3 days) Accuracy : ±1 second per day / ±15 seconds per month (average)
Water resistance : Splash Resistant Magnetic resistance : Equipped Weight : 92.0 g Other details / Features :
- ・18K yellow gold clasp
- ・30 jewels
- ・Case back with lion emblem
- ・Power reserve display
- ・Screw case back
- ・See-through case back
- ・Stop seconds hand function
The pure, understated and subtle design aesthetic of Grand Seiko is evident in every detail, as is the skill and care taken by the watchmakers at the Shinshu Watch Studio where the watch is made. The 18K yellow gold case is polished by a special Zaratsu method created to accentuate the beauty of the curved surfaces. The dials and the sapphire crystals are also curved to give the watches a classic look.
The dial expresses a unique pattern inspired by the wind-swept snow in the mountains of Shinshu. The new manual-winding Spring Drive caliber, 9R31, has two mainsprings set in parallel within a single barrel, but still captures the signature glide motion seconds hand reflecting the natural and continuous flow of time, with the same high precision rate of one second a day and delivers a power reserve of 72 hours.