Vacheron Constantin 4000S/000R-B123 Harmony Reference: 4000S/000R-B123 Shape: Cushion Size (mm): 40.00 x 49.28 Thickness (mm): 11.01 Material of the case: 18K 5N pink gold Material of the bezel: 18K 5N pink gold Material of the crown: 18K 5N pink gold Material of the dial: metal Back: Transparent caseback, sapphire glass Water-resistance (bar): 3 Watch strap material: alligator Mississippiensis Watch strap color: dark brown Type of buckle: Deployant buckle Buckle material: 18K 5N pink gold