This is a limited edition model commemorating the 20th anniversary of Grand Seiko's unique Spring Drive movement "Caliber 9R," which was born in 2004. [Retail Price: 792,000 yen (tax included)] Accessories: Watch body, dedicated box, warranty Warranty: Manufacturer's warranty Type: Authentic Brand: GRAND SEIKO Exterior: Stainless steel Back cover: Stainless steel and sapphire glass Back cover specification: See-through back Glass material: Box-shaped sapphire Coating: Anti-reflective coating on the inner surface Case size: Width 40.2mm, Length 48.5mm, Thickness 12.8mm Band width: 19mm Clasp: One-push three-fold clasp Wrist circumference length (maximum): 192mm Movement: 9R65 Instructions Driving system: Spring Drive automatic winding (with manual winding) Driving period: Approximately 72 hours (approximately 3 days) at maximum winding Accuracy: Average monthly difference ±15 seconds (equivalent to daily difference ±1 second) Water resistance: Reinforced water resistance for daily life (10 atmospheres) Magnetic resistance: Yes Weight: 144 g "LIMITED EDITION" notation on the back cover Serial number on the back cover Number of jewels: 30 jewels Power reserve display function No. 75 OSK [HA]