CASE DIMENSIONS: DIAMETER: 39 mm THICKNESS: 13.3 mm LENGTH: 45.5 mm MOVEMENT: Solar Chronograph Caliber V192 Powered by light energy - no battery change required 6-month power reserve once fully charged CASE: Stainless steel case CRYSTAL MATERIAL: Curved sapphire crystal with anti-reflective coating on the inner surface WATER RESISTANCE: 10 bar, 100 meters (330 feet) DIAL COLOR: Black STRAP: Stainless steel bracelet LUG WIDTH: 20 mm