Omega Constellation Co-Axial Master Chronometer 29mm Steel-Sedna Gold Mother of Pearl Dial 131.20.29.20.55.001

The Omega Constellation is one of the most storied dress-watch lines in Swiss horology, introduced in 1952 as a symbol of precision and awarded chronometer certification from its earliest generations. Today the Constellation continues that legacy with modern engineering at its core, and reference 131.20.29.20.55.001 represents the line at its most contemporary and feminine — a 29mm Co-Axial Master Chronometer that blends warmth, brilliance, and everyday wearability into a single timepiece.

The 29mm case is crafted from a combination of polished stainless steel and Omega's proprietary Sedna gold, a rose-gold alloy formulated to resist fading and maintain its warm blush hue over decades of wear. This two-tone construction is carried through seamlessly to the integrated bracelet, where alternating steel and Sedna gold links create a fluid, jewellery-like silhouette on the wrist. The iconic Constellation claws on the case flanks — a design signature since the 1960s — frame the dial with architectural confidence.

At the heart of this reference is Omega's Co-Axial Master Chronometer movement, a designation that signals the highest level of Swiss watchmaking excellence. Master Chronometer certification, granted by METAS, the Swiss Federal Institute of Metrology, requires the movement to pass eight stringent tests covering precision, magnetic resistance, and performance on the wrist — standards that far exceed the traditional COSC chronometer criteria. Buyers can wear this watch with complete confidence in its long-term accuracy and reliability.

The dial is the visual centrepiece of reference 131.20.29.20.55.001. Mother of pearl, with its naturally shifting iridescent surface, catches light differently with every movement of the wrist, ensuring the watch never looks the same twice. Diamond hour markers add genuine gemstone brilliance without overwhelming the organic beauty of the mother of pearl backdrop. Together, the warm glow of the Sedna gold bezel and the cool shimmer of the dial create a contrast that is understated yet unmistakably luxurious.

At 29mm, this Constellation is sized for a refined, elegant fit — ideal for those who prefer a watch that reads as fine jewellery as much as a precision instrument. It transitions effortlessly from professional settings to evening occasions, making it one of the most versatile luxury watches Omega produces at this price point.

Bizak & Co. offers this Omega Constellation 131.20.29.20.55.001 brand new, complete with box and papers, at the best available price. Our team of watch specialists is on hand to answer any questions, assist with sizing, and ensure a seamless purchase experience whether you buy online or reach out directly. When you are ready to buy this Omega Constellation, Bizak & Co. is your trusted source.