Watch Specification Watch Specification Brand: Watchdives Model:WD007ST(WD007 39mm) Movement: NH35 Automatic movement Case Material : High Quality Polishing 316L Stainless Steel Glass: Domed Sapphire Crystal, High Clear AR Coating Bezel: 120 clicks unidirectional bezel, crisp ...Watch Specification Watch Specification Brand: Watchdives Model:WD007ST(WD007 39mm) Movement: NH35 Automatic movement Case Material : High Quality Polishing 316L Stainless Steel Glass: Domed Sapphire Crystal, High Clear AR Coating Bezel: 120 clicks unidirectional bezel, crisp sounds. Helium escape valve: Yes/ No valve version available. Click →→here to order 18mm mesh bracelet for WD007ST