Maker Squale Movement Swiss automatic movement ETA 2893-2. Quickset GMT and Date function. Dial Black. Index markers. Luminous "Radium" SuperLuminova Case 316L Stainless Steel. Satin brushed top. Polished sides. Bezel 316L Stainless Steel. Polished. 120 clicks. Unidirectional. Crown type Screwdown crown at 3 O'clock. Squale signed. Lug width 21mm Crystal material Flat sapphire crystal with 2.5X magnifier. Anti-reflective coating on the inside. Strap 21mm Squale signed steel bracelet with diver extension with screw links. Water resistance 30ATMOS/300m Dimensions 42mm in diameter, 46.5mm including crown, 49mm lugs to lugs, 13mm thick