More than just a pretty face with a massive ego, the 51-30 Chrono is the ultimate blend of fashion and function. This oversized analog watch commands attention the moment you walk into a room, featuring a 51mm stainless steel case, bold printed indices, custom-molded hands, and 30 ATM water resistance. It is the original icon of oversized style. SPECS: Watch size: 51mm Case material: Stainless steel Case thickness: 15mm Case Color: Anthracite Case Back: Screw-down Case Back Bracelet Color: Anthracite Clasp: Automatic deployment clasp Bracelet Material: Stainless steel (brushed) Crystal material: Hardened mineral crystal Movement type: Analog quartz Water resistance rating: 300 meters / 30 ATM Lug-to-lug distance in mm/inch: 45.00 / 1.77 Diameter (excluding crown) in mm/inch: 51.00 / 2.01 Strap width in mm/inch: 30.00 / 1.18 Maximum strap circumference in mm/inch: 200.00 / 7.87 Weight in g/ounce: 150.00 / 5.29 Warranty: 1 Year Seller's warranty