microblasted black ceramic bezel with 6 h-shaped titanium screws
caliber 8923 self-winding Co-Axial master chronometer movement with date and annual calendar functions
With its unworn condition
automatic winding caliber 1904-PS MC movement with calendar aperture at 3 o'clock and subsidiary second counter at 6 o'clock
Brand Audemars Piguet Series Royal Oak Model Number 77452BC
Omega Specialities Olympic Official Timekeeper Watch - 39.5 mm Yellow Gold Case - Eggshell White Enamel Dial - Leather Strap - 522.53.40.20.04.001 Violet microblasted black ceramic bezel with39. 5 mm yellow gold case, transparent back, domed scratch resistant sapphire crystal anti reflective treatment on both sides, eggshell white enamel dial with vintage OMEGA logo, minute track and Seamaster wording, Caliber Omega 8807 self winding movement with a co axial escapement, chronometer, approximately 55 hours of power reserve, brown, leather strap. Water resistant to 6 bar (60 metres 200 feet).