Grand Seiko Mechanical Hi-Beat Diver SBGH257  Limited Edition: 500 pieces
Case: High-Intensity Titanium
Diameter: 46.9mmThickness: 17mmWater Resistance: 600 MetersMagnetic Resistance: 16,000 A/mCaliber: 9S85Driving System: Self-Winding with Hand Wind CapabilityAccuracy: -3/+5 seconds per day (when static)Vibrations: 36,000 bph (10 beats per second)Power Reserve: 55 HoursJewels: 37Other: Crown in 4:00 position, Tri-Fold Push Button Release Clasp w/ Secure Lock and Slide Adjuster, Extra-Strength Silicone Strap includedLimited Edition: 500 pieces