Watch Specification: Model: SD1959SMovement: Japan NH35 automatic, 41 hours of energy storage.Case/Bezelmaterial:Germany CuSn8 bronzeBezel: 120 Click Rotational Bronze BezelWatch mirror: sapphire crystalWater resistance: 100bar/1000 metersHelium Escape Valve Nobuckle: stainless steelLuminous: Swiss BGW9 blue and C3 green super-luminous lightWatch DimensionsCase diameter(without crown): 46mmLug to lug: 53.20mmCase thickness: 17.30mmband width: 24mmOur Service: Style: Automatic watch, dive Watch, Luxury Watch, bronze watchWarranty: 3 yearsReturns policy:30-day return and refundPackage: watch, box,warranty card, user manual