OMEGA Constellation

Omega's Constellation 131.25.29.20.55.002 is a women's model with a 29 mm case in steel and gold. The case measures 12 mm thick with a lug-to-lug span of 31.2 mm, and the white dial sits behind a domed sapphire crystal treated with anti-reflective coating on both sides. Inside is the self-winding calibre 8700, a Master Chronometer certified movement with Co-Axial escapement, silicon balance spring and 50 hours of power reserve, resistant to magnetic fields up to 15,000 gauss. The dial carries a date window, and diamonds are set on the case. A sapphire display back allows a view of the movement. The bracelet is steel and gold, secured by a butterfly clasp with comfort setting. Water resistance is rated to 50 metres.