Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel And Yellow Gold Case - White Silvery Dial - Olive Leather Strap - 131.23.39.20.02.002 Sunbeam 59 Model Number 26397BC

59 Model Number 26397BC

Silicon balance spring

date by hand in 6:00 counter

45 mm polished 18K magic gold case

stainless steel strap

Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel And Yellow Gold Case - White Silvery Dial - Olive Leather Strap - 131.23.39.20.02.002 Sunbeam 59 Model Number 26397BC39 mm steel and yellow gold case with anti magnetic protection, transparent back, bezel engraved with Roman numerals, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, silk embossed white silvery dial with date at 6 oclock, Calibre Omega 8800 self winding co axial master chronometer movement with date, approximately 55 hours of power reserve, olive leather strap. Water resistant to 50 metres (167 feet).