2Jewellery Movement Men's Watches Movement: 7H50 automatic Movement Model: 1929 Drive: single-spring drive Power reserve: 80 (hours) Vibration frequency: 28800 (times/hour) Winding method: automatic winding Case Diameter: 49.543mm Case thickness: 14mm Strap width: 20-25.5mm Case material: carbon fiber, stainless steel Strap Material: Rubber Waterproof depth: 50 life waterproof Mirror: artificial sapphire Caseback: Artificial sapphire Crown: straight in