Omega De Ville Tresor Omega Master Co-Axial Watch - 40 mm Yellow Gold Case - Silvery Dial - Brown Leather Strap - 432.53.40.21.02.001 constellation self-winding chronometer Omega 8520 movement

self-winding chronometer Omega 8520 movement with Co-Axial Escapement

unidirectional rotating bezel with blue ceramic insert

instantaneous date with rapid setting

white mother-of-pearl supernova dial with diamond hour markers

Omega De Ville Tresor Omega Master Co-Axial Watch - 40 mm Yellow Gold Case - Silvery Dial - Brown Leather Strap - 432.53.40.21.02.001 constellation self-winding chronometer Omega 8520 movement40 mm 18K yellow gold case, transparent back, scratch resistant sapphire crystal with anti reflective treatment on both sides, silvery opaline dial with a domed vintage clous de Paris structure, self winding chronometer Omega 8511 movement with Co Axial Escapement, date, and resistance to magnetic fields greater than 15,000 gauss, approximately 60 hours of power reserve, brown leather strap, 18K yellow gold buckle. Water resistant to 30 m.