Case material: Yellow gold; Charge: Automatic; Conditions: New Presentation condition : With dealer guarantee ; Model: Constellation Price on request Gmtbroker Reference: 123.57.35.20.55.003 Omega 123.57.35.20.55.003 Complete Details: 18kt yellow gold case and diamond bezel White mother-of-pearl shell dial with 11 diamond hour markers Displays date at 3 o'clock Omega 2500 Co-Axial Escapement movement Power Reserve about 48 hours This watch is also known as 12357352055003