Despite its vintage roots, the NOS Model 77 is big enough to suit contemporary tastes. The stainless steel case is 41 millimeters in diameter, with a versatile end to end dimension of 48 millimeters. The black steel bezel is topped by a fitting black aluminum ring fully marked for timing up to an hourlong dive or anything else. The watch comes with a “porthole” style rubber strap on the Model 77, just as it would have been back in the ‘70s.Tech SpecsModel: NOS Model 77Size: ...41mm diameter, 48mm lug-to-lugThickness: 15mmCase material: Stainless steelHelium release valve at 2:00Bezel: 42mm uni-directional ratcheting 120-click rotating, with ceramic timing ringDial color: blackLuminescence: SuperLumiNova markers and handsWater Resistance: 20bar (approx. 200 meters/660 feet)Strap: 22mm “porthole” vintage style rubber strap with pin buckle or orange and black “NATO” style nylon strap Caliber: ETA 2836-2Functions: Hours, minutes, sweep seconds, dateSize: 11.5’’’Adjustment: Adjusted to 5 positions with certificate providedPower reserve: 42 hoursWinding: Self-windingFrequency: 4 Hz (28, 800 vibrations per hour)Jewels: 25 The Sale of the watch is for the watch as is and as you see in the pictures. NO BOX OR PAPERS are available. ONLY WATCH AND THE STRAP. THE WATCH IS UNWORN. LIKE NEW.Please do notice that customs expenses in your country are your responsibilityDont hesitate to ask for pics or further info.