Omega Constellation Co-Axial Master Chronometer 39mm Steel Yellow Gold Silver Dial 131.25.39.20.52.002

The Omega Constellation is one of the most storied dress-watch lines in Swiss horology, introduced in 1952 to celebrate the brand's precision chronometry achievements. Over seven decades the Constellation has evolved from a simple round medallion-caseback dress watch into a sophisticated family of references that balance sporting refinement with genuine mechanical credentials. The 39mm Co-Axial Master Chronometer generation represents the pinnacle of that evolution, marrying Omega's modern movement philosophy with the collection's signature aesthetic codes — the pie-pan-inspired dial, the clawed bezel, and the integrated bracelet.

Reference 131.25.39.20.52.002 is executed in a two-tone combination of polished and brushed stainless steel paired with warm 18-carat yellow gold on the bezel, bracelet centre links, and case details. At 39mm the case sits at a versatile diameter that reads as a true dress size without feeling insubstantial, suiting both suited occasions and smart-casual everyday wear. The integrated steel and yellow gold bracelet follows the contour of the wrist naturally, lending the watch a tailored, finished appearance from every angle.

The silver dial is set with diamonds across the hour markers, catching light with every movement of the wrist and elevating the reference firmly into jewellery-watch territory without sacrificing legibility. The yellow gold diamond-set bezel — one of the Constellation's most recognisable design signatures — frames the dial with a continuous sparkle that complements the warm gold tones throughout. Together, dial and bezel make 131.25.39.20.52.002 one of the most visually complete expressions in the current Constellation catalogue.

Powering the watch is an Omega Co-Axial Master Chronometer movement, a designation that carries two layers of meaning. The Co-Axial escapement, developed originally by George Daniels and refined by Omega, reduces friction and improves long-term rate stability compared to conventional lever escapements. Master Chronometer certification, awarded by the Swiss Federal Institute of Metrology (METAS), requires the movement to demonstrate precision within zero to plus-five seconds per day across eight demanding tests and to resist magnetic fields of at least 15,000 gauss — a standard far beyond standard COSC chronometer certification.

Buying reference 131.25.39.20.52.002 from Bizak & Co. means acquiring a brand-new example backed by Omega's full international manufacturer warranty and the assurance of an authorised, reputable dealer. At Bizak we offer competitive best-price positioning on new Omega Constellation references without compromising on authenticity or service. Whether you are purchasing your first luxury watch or adding a two-tone diamond Constellation to a growing collection, our team is ready to assist with expert guidance, secure packaging, and prompt nationwide delivery. Reach out via bizakandco.com to make this iconic piece yours today.