Grand Seiko Heritage
Movement
Caliber: 9R65
Movement Type: Spring Drive
Power reserve: Approx. 72 hours(3 days)
Accuracy: ±1 second per day / ±15 seconds per month (average)
Exterior
Case Material: Stainless steel
Case Size: Diameter 39mm
Crystal: Dual curve sapphire, Internal anti-reflective coating
Band: Stainless steel/leather