Speedmaster Professional Moonwatch Co-Axial Sapphire

The Omega Speedmaster is a sports chronograph with pushers beside the crown to start, stop and reset its stopwatch function. Its dial carries subdials for the elapsed time, while a tachymeter scale lets the wearer calculate speed over a known distance.

This Omega Speedmaster Professional Moonwatch, reference 31030425001002, dates from June 2023 and has a 42 mm steel case with a steel bezel, sapphire crystal and display caseback. The black dial has stick indices and luminous hands, and the watch is worn on a steel bracelet with a folding clasp. It runs on the manual-winding calibre 3861 with a 70-hour power reserve, comes with box and papers, and is in very good condition.