Omega Constellation Co-Axial Master Chronometer 39mm Steel-Yellow Gold Silver Dial 131.20.39.20.02.002

The Omega Constellation is one of the most storied watch lines in Swiss horology, introduced in 1952 as a platform for Omega's most precise, officially certified movements. Over seven decades the Constellation has evolved through several iconic design generations, yet it has always remained true to its founding promise: observatory-grade accuracy dressed in refined, enduring style. The 39mm steel and yellow gold reference 131.20.39.20.02.002 represents the current generation of that tradition, bringing together modern manufacture technology and a timeless two-tone aesthetic.

The case of reference 131.20.39.20.02.002 measures 39mm in diameter and is crafted in stainless steel accented with polished yellow gold, a pairing that projects warmth and sophistication without excess. The signature Constellation claws — four angular lugs that grip the bezel — are rendered here in yellow gold, lending the watch its unmistakable profile on the wrist. The crown-at-9 o'clock architecture and the smooth, continuous case lines give the piece a clean, uninterrupted silhouette that reads equally well under a suit cuff or with a casual rolled sleeve.

The silver dial is one of the most versatile and enduring dial choices in fine watchmaking, and on this reference it is dressed with a combination of applied index and Roman numeral hour markers that nod directly to the Constellation's mid-century heritage. The interplay between the warm gold bezel and the cool silver dial creates a subtle but sophisticated chromatic contrast, while the overall layout remains legible and uncluttered — hallmarks of a watch designed to be worn and read every single day.

Powering the 131.20.39.20.02.002 is Omega's Co-Axial Master Chronometer movement, a designation that carries real weight. Master Chronometer certification, issued by the Swiss Federal Institute of Metrology (METAS), requires a movement to pass eight rigorous tests including precision in six positions and resistance to magnetic fields of 15,000 gauss — a standard that far exceeds the traditional COSC chronometer benchmark. The Co-Axial escapement, pioneered by George Daniels and adopted by Omega, reduces friction within the gear train, extending service intervals and maintaining rate accuracy over the long term.

The steel bracelet completes the watch with the same careful finish as the case — polished and brushed surfaces working together to convey quality at every glance. At 39mm the Constellation sits comfortably on a wide range of wrist sizes, large enough to make a statement yet compact enough for all-day wear without fatigue. It is a watch that transitions effortlessly from the boardroom to a weekend dinner, making it one of the most genuinely versatile references in the current Omega catalogue.

Bizak & Co. is proud to offer the Omega Constellation 131.20.39.20.02.002 brand new at the best available price. Our team of luxury watch specialists is on hand to answer any questions, assist with sizing, and ensure a seamless purchase experience whether you are buying your first Omega or adding to an established collection. Reach out to us at bizakandco.com to secure this exceptional steel and yellow gold Constellation today.