Case material: Steel; Charge: Automatic; Conditions: New Presentation condition : With dealer guarantee ; Model: Seamaster Price on request Gmtbroker Reference: 231.20.30.20.55.004 Omega 231.20.30.20.55.004 Complete Details: Stainless steel brushed finished case and bracelet 18KT Yellow gold bezel and crown White Mother of Pearl dial with a linear textured design. 11 Diamond hour markers. Date window located at the 3 o'clock position. Features Omega caliber 8520 movement: Self winding movement with Co-Axial Escapement which contributes to greater precision, stability and durability & reduces the necessity of lubrication thus reducing the time required between servicing. The rotor win & bridge are finished with a unique "arabesque" Cotes de Geneva finish. Power Reserve: 50 hours This watch is also known as 23120302055004