Seiko Prospex Automatic Diver. This highly functional diver is designed with a gold-finished stainless steel case and black silicone accordion style strap, featuring a black and gold one-way rotating bezel . The black dial displays a day/date calendar with LumiBrite hands and markers. The 24-jewel automatic movement has both manual and automatic winding capabilities and beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 41 hours. Diver's, 200m Water Resistant