Men's Watches BrandsMovement: 1HC5 automatic movementMovement Model: 2203Drive: single-spring drivePower reserve: 72hVibration frequency: 28800 (times/hour)Winding method: automatic windingCase Diameter: 4454 mmCase thickness: 17 mmStrap width: 20*26 mmCase Material: crystal glass, stainless steelStrap Material: RubberWaterproof depth: 30 meters life waterproofMirror: Synthetic sapphire glassCaseback: Synthetic sapphire glassCrown: straight in