Omega Constellation Co-Axial Master Chronometer Watch - 27 mm Steel And Yellow Gold Case - White -Silvery Diamond Dial - Brushed Steel Bracelet - 127.20.27.20.52.002 Extra-Thin calibre 8520 self-winding movement with

calibre 8520 self-winding movement with co-axial escapement for greater precision stability and durability

This exquisite model is rendered in polished steel with a radiant blue dial

black dial with Mega Tapisserie” pattern

20mm thick

self-winding chronometer Omega 8401 movement with Co-Axial Escapement and seconds

Omega Constellation Co-Axial Master Chronometer Watch - 27 mm Steel And Yellow Gold Case - White -Silvery Diamond Dial - Brushed Steel Bracelet - 127.20.27.20.52.002 Extra-Thin calibre 8520 self-winding movement with27 mm stainless steel and 18K yellow gold case, transparent back, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, white opaline silvery dial with silk like pattern and diamond indexes, caliber 8700 self winding Co Axial master chronometer movement with date function, approximately 50 hours of power reserve, brushed stainless steel bracelet with polished 18K yellow gold bars. Water resistant to 100 m (330 ft).