Case material: White gold; Charge: Automatic; Conditions: New Presentation condition : With dealer guarantee ; Model: Constellation Price on request Gmtbroker Reference: 123.55.31.20.51.001 Omega 123.55.31.20.51.001 Complete Details: 18kt white gold case and bracelet Bezel set with 34 diamonds Black "supernova" dial with 11 diamond hour markers Displays date at 3 o'clock Omega 8521 Co-Axial Escapement movement Power Reserve: about 50 hours This watch is also known as 12355312051001