Omega Constellation Co-Axial Master Chronometer Watch - 38 mm Steel And Yellow Gold Case - White -Silvery Dial - Brushed Steel Bracelet - 123.20.38.21.02.006 Silvered born from flexible metal blades

born from flexible metal blades overmolded with high-performance elastomer

it ensures unparalleled accuracy and reliability in timekeeping

unidirectional rotatable bezel with blue Cerachrom insert and platinum coated numerals and graduations

At its heart beats the 4131 manufacture Rolex perpetual movement—a mechanical chronograph driven by self-winding technology

rounding out its seamless design

Omega Constellation Co-Axial Master Chronometer Watch - 38 mm Steel And Yellow Gold Case - White -Silvery Dial - Brushed Steel Bracelet - 123.20.38.21.02.006 Silvered born from flexible metal blades38 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, caliber 8500 self winding Co Axial master chronometer movement with date function, approximately 60 hours of power reserve, brushed stainless steel bracelet with polished 18K yellow gold bars. Water resistant to 100 m (330 ft).