The Szanto Vintage Dive Watch is a smart & simple divers watch that you can wear to the office & deep under water. The leather straps are treated for use in water & combined with the style inspired by WW1 wrist watches gives it a vintage style. 43mm 316L Brushed Stainless Steel Case Unidirectional 120 Click Rotating Timing Bezel Screw Down Locking Crown Screw Case Back Thick Swiss Superluminova Lume on Hands & Dial Numbers ensures bright & long lasting visibility Japan Quartz 3 Hand + Date Movement Hardened Mineral Crystal 22mm Waterproof Leather Strap (treated for use in water) with Signature Buckle 200 Meters Water Resistant Face diameter 33mm Face + Bezel diameter 43mm