Caliber 4R57 Vibrations: 21,600 vibrations per hour (6 beats per second) Power reserve: approximately 41 hours Jewels: 29 jewels Specifications: Stainless steel case Sapphire crystal Diameter: 42.00mm, Thickness: 14.0mm Water resistance: 10 bar Magnetic resistance: 4,800 A/m Stainless steel bracelet with three-fold clasp with push button release Packaging: New in box with manual