OMEGA Speedmaster Racing

Omega Speedmaster Racing 329.30.44.51.01.002 is a chronograph with a 44.25 mm steel case. Thickness runs to 14.92 mm and lug-to-lug measures 50 mm. The black dial sits under a domed sapphire crystal with antireflective treatment on both sides. Inside is the self-winding calibre 9900, a Master Chronometer movement with column wheel construction and a silicon balance spring, resistant to magnetic fields up to 15,000 gauss. It offers 60 hours of power reserve and includes a time zone function alongside the chronograph, small seconds and tachymeter scale. A transparent caseback shows the movement. The steel bracelet closes with a foldover clasp with comfort setting, and the case holds a 50 metre water resistance rating.