Japan Time Module (Seiko) Automatic Movement Cal. NH37 Manual/Automatic winding 24 jewels 21,600 vibrations per hour more than 41 hours power reserve Hands: Hour, Minute, Second, and 24 hours hand Lumed Hour, Minute, Second hand Hacking seconds Case: 44mm diameter 10.8mm thick 316L Stainless Steel Brushed finishing Screw-down 316L Stainless Steel Bottom Cover Dial: Metal index with diagonal brush Crown: 10mm diameter pumpkin shaped crown Crystal: Sapphire Crystal with anti-reflection coating Water Resistant 200m/660ft (20ATM) Water Resistant Straps: Tool-less strap-changing system 22mm width One 90/130mm crazy horse genuine leather strap One 90/130mm genuine leather strap Military Style Nylon Strap
- Automatic 24J Movement Cal. NH37
- Sapphire crystal
- 3 straps
- 200M water resistant
