Prospex Land Designed for rugged activities Black rotating compass bezel Emergency code listing on screwdown caseback Automatic with manual winding capability 21,600 vibrations per hour Power reserve: approximately 41 hours 23 jewels Black dial with rose gold accents Date calendar LumiBrite hands and markers Sapphire crystal for superior scratch resistance Screwdown crown Case diameter: 42.4mm Stainless steel case Black leather strap with contrast stitching Water-resistant to 20 bar, 200 meters (660 feet) Caliber 4R35