Movement: 7H50 automaticModel: 1971Drive: single-spring drivePower reserve: 80 (hours)Vibration frequency: 28800 (times/hour)Winding method: automatic windingCase Diameter: 49.5x43mmCase thickness: 14mmStrap width: 20-25.5mmCase material: carbon fiber stainless steelStrap Material: RubberWaterproof depth: 50m life waterproofGlass: Synthetic sapphire crystalBuckle: Butterfly double snapCrown: straight