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OMEGA Constellation

OMEGA Constellation

AutomaticGold/Steel

Ref. 131.25.29.20.55.001

Collection: ConstellationCase size: 29mmMovement: 8700

This Omega Constellation, reference 131.25.29.20.55.001, measures 29 mm across in steel and Sedna gold. The case stands 12 mm thick with a lug-to-lug of 31.2 mm, and the white dial sits under a domed sapphire crystal with anti-reflective treatment on both sides. Inside is the self-winding calibre 8700, a Master Chronometer movement certified by METAS and resistant to magnetic fields up to 15,000 gauss, with a power reserve of 50 hours. It is set with diamonds and carries a date function. The caseback is transparent, showing the movement. A steel and gold bracelet closes with a butterfly clasp that includes a comfort setting. The case holds a 50 metre water resistance rating.

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Last updated 11 Jul 2026Suggest a correction

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