Constellation Omega, this model has a 25 mm case, incorporates its very characteristic "claws" on the case and the mounting bracelet.
Steel model, bezel engraved with the usual Roman numerals, a white mother-of-pearl dial, hour markers with diamonds, hands and the Constellation Star is integrated at 6 o'clock are in 18 kt Sedna gold, sapphire crystal with anti-reflective treatment . Case back is stamped with the Observatory medallion.