PROSPEX COLLECTION Prospex Automatic DiverManual and automatic winding capabilities21,600 vibrations per hourPower reserve: approximately 41 hours24 jewelsBlack ceramic one-way rotating elapsed timing bezelBlack dial with 3-D pressed patternMagnified day/date calendarLumiBrite hands and markersSapphire crystal with anti-reflective coating on the inner surfaceScrewdown crown and casebackCase diameter: 45.0mmStainless steel case and braceletWater-resistant to 200 meters (660 feet), Divers Watch. Meets ISO standards and is suitable for scuba diving.Caliber 4R36 Please Note: This model shows surface scratches on the bezel. Functionally, the watch is in perfect condition. For further details or additional photography, please contact us. *This item is STORE DISPLAY MODEL and will come with the original box and papers. We are authorized SEIKO dealer, which means you will receive the manufacturer's warranty with your purchase.