This watch is also known as:
1213.10.00 , 121310 , 12131000 .
Omega Constellation Double Eagle Perpetual Calendar Mens Watch.
18k Yellow Gold and Stainless Steel Case and Bracelet.Champagne Dial with Thermocompensated Quartz Movement.The makings of the Bezel is 18k Yellow Gold and enjoys the function of Fixed.Hidden Folding Clasp.18k Yellow Gold, Fluted, Protected Crown.Automatic Date at 3 O'Clock Calendar.60-month battery life.Functions are Hours, Minutes, Seconds, Perpetual Calendar.Resistance to 100m / 330ft.
Omega Constellation Double Eagle Perpetual Calendar