OMEGA Speedmaster Moonwatch Professional

Omega's Speedmaster Moonwatch Professional, reference 310.32.42.50.01.002, is a 42 mm steel chronograph. The case is 13.18 mm thick and measures 47.5 mm from lug to lug. Calibre 3861 is a manual-winding movement with a Co-Axial escapement and a 50 hour power reserve. The movement is certified as a Master Chronometer by METAS and has a free-sprung balance with a silicon balance spring. A domed sapphire crystal with anti-reflective treatment on the inside covers the black dial, and the watch has a display back. The dial carries small seconds and a tachymeter. Omega rates the case to 50 metres. A black leather strap is fitted to the watch.