Model & MovementMovement: E037 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 Push ButtonsCase & DimensionsCase Width: 30mmCase Material: Two-Tone Stainless SteelWater Resistance: WR50/5Bar/166ft [Still Water Swimming]CrystalMaterial: Mineral CrystalImpact and shatter resistantDial & DetailsDial: BlueDetails: Metal & Plastic