Prospex Automatic Diver. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and winning design. Inspired by Seiko’s most iconic diving styles, this distinctive watch includes such upgrades as a black ceramic one-way rotating elapsed timing bezel, magnified date window and sapphire crystal with anti-reflective coating on the inner surface. The white dial, with LumiBrite hands and markers, has a 3-D pattern reflecting the shape of the black and gray bezel edge. For reliable underwater timekeeping, the 23-jewel automatic movement beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 41 hours, and can be wound manually or automatically. Crafted of stainless steel, with black silicone strap and secure screwdown crown and caseback, this high-intensity timepiece follows ISO standards for scuba diving. 200m Water Resistant

Case: Stainless steel case
Case Diameter: 44mm
Case Thickness: 12.81mm
Case Length: 48.7mm
Crystal:Sapphire crystal with anti-reflective coating on the inner surface
Water Resistance: 200 meters (660 feet), follows ISO standards and is suitable for scuba diving
Dial Color: White
Strap: Black silicone strap
Lug Width:  22mm
Movement:  Caliber 4R35
21,600 vibrations per hour
23 jewels
Power reserve: approximately 41 hours