Longines Caliber L844.4 Automatic Chronometer Movement, 72 Hours Power Reserve, Stainless Steel and Ceramic Case Construction with Solid Black Dial featuring Silver Tone Hands and Arabic Hour Markers along Outer Minute Ring, Date Function, 24-Hour Display (Zulu Time), Screw In Crown, Scratch Resistant Sapphire Crystal, Round 42mm Case Size, 13.90mm Thickness, Deployment Push Button Clasp Steel Bracelet, 100 Meter / Approx. 330 Feet Water Resistance, Comes with 5 Year WatchMaxx Warranty