This watch is also known as:
1511.30.00 , 15113000 , 1511-30-00 .
Omega Constellation Double Eagle Perpetual Calendar Watch.
Omega Double Eagle Perpetual Calendar 1511.30 Silver Dial. Thermocompensated quartz perpetual calendar movement with rhodium-plated finish. Power reserve of 60 months. Self Winding Automatic Chronometer Movement, Scratch Resistant Sapphire Crystal, Sapphire Crystal Exhibition Back, Brushed with Polished Steel Case & Bracelet.100 Meters / 330 Feet Water Resistant. 35mm Diameter.
All this features make Omega Constellation Double Eagle Perpetual Calendar an exclusive timepiece with a strong personality.