1. THE COLLECTION CONSTELLATION 160 YEARS Steel red gold on steel gold central bar MOVEMENT Caliber Omega 2500 Self winding chronometer Co Axial Escapement movement with rhodium plated finish Power reserve 48 hours CRYSTAL Domed scratch resistant sapphire crystal with anti reflective treatment inside ref 111 20 36 20 52 001 CASE amp DIAL Case Steel red gold Case Diameter 35 5 mm Dial Silver WATER RESISTANCE 5 bar 50 metres 167 feet FEATURES Chronometer Diamonds Date Transparent case back www omegawatches com