Here we have a gorgeous Omega tank watch dating by back to the 1970’s. As seen in the photos, both the gold-toned dial and the gold-plated case are in great condition. The Omega calibre 485 manual movement is gaining around 3 minutes over a 24 hour period. Make this beautiful Omega dress watch yours today! Specification Mechanism: Manual Department: Vintage Gender: Unisex Serial Number: 32771480 Movement Number: 485 Model Number: 511.345 Age: c.1970 Case Diameter (Including Crown): 21mm Case Diameter (Excluding Crown): 20mm Case Thickness: 8mm Lug to Lug: 31mm Lug Width: 17mm If you have any further questions, feel free to ask!