Seiko PROSPEX

Prospex Land Designed for rugged activities Blue and 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 Blue dial Date calendar LumiBrite hands and markers Sapphire crystal for superior scratch resistance Screwdown crown Case diameter: 42.4mm Stainless steel case Dark blue nylon strap with contrast stitching Water-resistant to 20 bar, 200 meters (660 feet)Caliber 4R35