Technical specifications:Movement: QuartzDial: blackPower: BatteryGlass: Scratch-resistant sapphire mineral glassCase: Steel ip grayCrown: Stainless steel pressureDiameter: 57 mmBezel: Stainless steelBack: SteelStrap: Black leatherClasp: SteelWater resistance: 10 atmFunctions: time, date, chronograph, 4 clocks.Packaging: Original box