Mechanical Watch Movement: CAL12201Movement Model: 1933Drive: single-spring drivePower reserve: 80 (hours)Vibration frequency: 28800 (times)Winding method: automatic windingCase Diameter: 41mmCase Thickness: 12.2mmStrap width: 21mmCase material: 316 fineStrap material: Italian calfskinWaterproof depth: 50 meters life waterproofCrown: straight inMirror: artificial sapphireBuckle: Folding buckleCrown: straight in