Omega Constellation Co-Axial Master Chronometer 29mm Steel Yellow Gold Mother of Pearl Dial 131.20.29.20.55.002

The Omega Constellation is one of the most storied dress-watch families in Swiss horology, introduced in 1952 to celebrate the brand's series of chronometric observatory victories. Over seven decades it has evolved from a slim round dress piece into a boldly recognisable icon distinguished by its clawed case, integrated bracelet, and the famous star motif at six o'clock — design language that remains instantly legible on the wrist today. Reference 131.20.29.20.55.002 represents the current-generation Constellation at its most glamorous, pairing precious yellow gold accents with the dependability of steel in a 29mm format sized with elegance and everyday wearability in mind.

The case measures 29mm in diameter — an ideal proportion for smaller wrists — and is constructed in a combination of polished steel and warm 18-karat yellow gold. The signature four-claw bezel, rendered entirely in yellow gold, frames the dial with architectural precision and recalls the observatory-podium motif that runs through Constellation's entire heritage. Lugs flow seamlessly into the integrated two-tone bracelet, a hallmark of the Constellation design that gives the watch a unified, jewellery-like presence on the wrist.

At the heart of the dial is a genuine mother of pearl plate, whose naturally iridescent surface shifts between cream, rose, and silver as light moves across it — no two examples are identical. Diamond-set hour indices replace the conventional applied markers, adding a layer of brilliance that elevates the watch firmly into luxury territory. The yellow gold detailing of the bezel, bracelet centre links, and crown ties the warm tones of the dial treatment together into a wholly coherent design.

Powering the watch is Omega's Co-Axial Master Chronometer movement, the brand's most rigorously certified calibre family. Master Chronometer certification — awarded by the Swiss Federal Institute of Metrology (METAS) — demands performance across eight stringent tests including resistance to magnetic fields of 15,000 gauss, a standard that far exceeds conventional chronometer requirements. The Co-Axial escapement, developed by master watchmaker George Daniels and refined by Omega, reduces friction between escapement components, translating directly into long-term accuracy and significantly extended service intervals compared to traditional lever-escapement movements.

For the buyer, reference 131.20.29.20.55.002 represents an intersection rarely found in a single watch: observatory-level movement certification, genuine precious-metal aesthetics, and the quiet prestige of a manufacture with over 170 years of history. It wears equally well at a formal dinner, a business engagement, or a weekend occasion, and its two-tone construction means it coordinates effortlessly with both yellow gold and silver jewellery. Available brand new at Bizak and Co., this Constellation comes with full manufacturer packaging and is offered at our best price. Reach out to our team at bizakandco.com to enquire, place an order, or request additional detail — we are here to help you secure this exceptional timepiece with confidence.