Omega Constellation Quartz 27 mm Watch - 27.0 mm Steel And Yellow Gold Case - 18K Yellow Gold Bezel - Champagne Mother-Of-Pearl Diamond Dial - Steel Bracelet - 123.20.27.60.57.001 Sunray caliber 8520 self-winding movement with

caliber 8520 self-winding movement with automatic winding in both directions to reduce winding time

With a scratch-resistant sapphire crystal and a screw-down crown

With an impressive power reserve of approximately 72 hours and waterproofing up to 100 meters (330 feet)

black Oysterflex strap made from flexible metal blades overmoulded with high-performance elastomer

29 mm steel and yellow gold case with anti-magnetic protection

Omega Constellation Quartz 27 mm Watch - 27.0 mm Steel And Yellow Gold Case - 18K Yellow Gold Bezel - Champagne Mother-Of-Pearl Diamond Dial - Steel Bracelet - 123.20.27.60.57.001 Sunray caliber 8520 self-winding movement with27. 0 mm stainless steel and yellow gold case, sapphire back, 18k yellow gold bezel with engraved roman numerals, domed scratch resistant sapphire crystal with anti reflective treatment inside, champagne mother of pearl dial with a wavy pattern extending from the iconic claws and 12 diamond indexes, caliber 1376 quartz movement, approximately 48 months of power reserve, stainless steel bracelet with 18K yellow gold bars. Water resistant to 10 bar .