Speedmaster Professional, Ref:145.0055, Movement No.77125532, Circa 2000
18-jewel Cal.1800 manual wind movement, sunburst silvered dial with applied polished block and luminous dot hour markers, black inner 1/5th second divisions, blued steel pointed baton hands with luminous inserts and centre chronograph hand, subsidiary dials at 3, 6, 9 and 12 for running seconds, 30 minute and 12 hour recording and calendar and moonphase, brushed and polished tonneau shaped case with screw down back and inner anti-magnetic cap, fixed bezel with black insert and tachymetre scale, shouldered crown flanked by twin chronograph pushers, quick set buttons set in band at 10, fitted black Omega leather strap with 18ct white gold signed folding clasp, case, dial and movement signed
42mm.