This is an Omega Seamaster Planet Ocean 600M Ref. 2210.51.00, circa mid-2000s. A professional dive watch built to exceptional standards, this model features a 45.5mm stainless steel case, black dial, and black unidirectional dive bezel. Powered by the Omega Caliber 2500 Co-Axial automatic movement, it offers outstanding reliability, a helium escape valve, and 600 meters of water resistance, making it equally at home underwater or on the wrist every day. Key Features: Model: Omega Seamaster Planet Ocean 600M Reference: 2210.51.00 Case Size: 45.5 mm Case Material: Stainless Steel Bezel: Black unidirectional rotating dive bezel Dial: Black with luminous hands and applied hour markers Movement: Omega Caliber 2500 Co-Axial automatic movement Bracelet: Stainless steel bracelet Crystal: Domed sapphire crystal with anti-reflective coating Functions: Hours, Minutes, Seconds, Date, Helium Escape Valve Box: No Papers: No Condition: 9/10 – excellent overall condition with minimal signs of wear Year: Circa mid-2000s Service Warranty: 1-year service warranty on all pre-owned timepieces post 1975 Watch can be polished on customer request.