Exterior

Case Material : Stainless steel
Glass Material : Dual-curved sapphire crystal
Glass Coating : Anti-reflection coating on inner surface
Dial Color : Emerald green with diamonds and Grand Seiko’s lion symbol
Case size : Length 47.5 mm x Diameter 40.2 mm x Thickness 13.2 mm
Clasp type : Three-fold clasp with push button release
 

Functions

Water resistance : 10 bar
Magnetic resistance : 4800 A/m (60 gauss)
Weight : 151.0 g
Other details / Features : 

• Screw down crown
• Screw back
• See-through back
• Jewels: 37
• Power reserve: Over 55 hours

Movement

Caliber no. : 9S85    Instructions
Movement Type : Automatic with manual winding capacity
Power reserve : Approx. 55 hours
Accuracy : +5 to -3 seconds per day (when static)