OMEGA Speedmaster 38

The Omega Speedmaster 38, reference 324.30.38.50.01.001, is a chronograph in a 38 mm steel case. The case measures 14.7 mm thick with a lug-to-lug span of 44.9 mm, and the black dial sits under a sapphire crystal treated with anti-reflective coating on both sides. Inside is the self-winding calibre 3330, a column-wheel chronograph movement with Co-Axial escapement and a Si14 silicon balance spring, offering 52 hours of power reserve. It is an officially certified chronometer. Beyond timing functions the dial adds a date window and small seconds, with a tachymeter scale for measuring speed. The watch is fitted on a steel bracelet. Omega rates the case to 100 metres.