Automatic Chronometer, Caliber L844.4 movement with 72 hours power reserve, Date function, 24 Hour format (Zulu time), Deployment Push Button Clasp, Blue Calfskin Leather strap, Stainless Steel and Ceramic case, Silver tone blue dial with Arabic numeral hour markers and minute markers around the outer rim, Scratch Resistant Sapphire crystal glassware, Round case shape measuring 42mm diameter by 13.90mm thickness, Solid case back, Water resistant up to 100 meters (approximately 330 feet) depth.