Size: 40mm Diameter (including acetate case) Depth: 7.4mm Outer Case Material: Italian Mazzucchelli Acetate Outer Case Colour: Tortoise Inner Case Material: 316L Stainless Steel Inner Case Colour: Gold Dial Colour: Black Movement: Swiss Ronda Quartz 515 Function: 3 Hands + Date Strap Width: 20mm Strap Colour: Brown Buckle Width: 20mm Quick release spring bar Strap Material: Double-sided Premium Italian Leather Water Resistance: 5ATM Warranty: 2 years This choice was also inspired by the Vasamuseet, the maritime museum in Stockholm, which showcases salvaged ships from history. Ships are the main transport of the ocean, yet it is the sailing control panel that has the most importance for sailing on the tremendous empty oceans. We have sourced the acetate from Mazzucchelli 1849, an Italian company that has existed for centuries. They supply acetate of the best quality and in the finest traditions. Every acetate piece is laser cut and polished by experienced watchmakers. We cannot guarantee the acetate pattern is the same on every watch, but we like this uniqueness.