OMEGA Speedmaster 38

The Omega Speedmaster 38, reference 324.30.38.50.55.001, is a chronograph with a 38 mm steel case. The case measures 14.7 mm thick with a lug-to-lug span of 44.9 mm, and the white 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 a Co-Axial escapement and a free sprung-balance fitted with a silicon spring, certified as a chronometer and rated for 52 hours of power reserve. The dial carries a date window and small seconds, with a tachymeter scale for measuring speed, and the piece is set with diamonds. It is fitted on a steel bracelet secured by a butterfly clasp. Omega rates the case to 100 metres.