Model & MovementMovement: B620 Eco-DrivePowered by any light source, continuously and sustainably, eliminating the need to replace watch batteries.Band & ClaspBand Type: Stainless Steel BraceletClasp: Fold Over Clasp with Hidden Push ButtonsCase & DimensionsCase Width: 40mmCase Material: Silver-Tone Stainless SteelWater Resistance: WR200/20Bar/666ft [Swimming, Showering & Snorkeling]CrystalMaterial: Anti-Reflective Sapphire CrystalImpact and shatter resistant – anti-reflective coating deflects lightDial & DetailsDial: Silver-ToneDetails: Metal & PlasticMovement Functions1/5 Second Chronograph Measures up to 60 Minutes12/24 Hour TimeDate