The Omega Constellation Co-Axial Master Chronometer features a feminine 29mm case crafted in 18K Sedna gold completely adorned with brilliant-cut diamonds using the snow-setting technique. The dial is a masterpiece of gem-setting artistry, featuring a full pavé of diamonds that creates a spectacular sparkle. The distinctive ruby hour markers add a bold splash of colour, while the Sedna gold hands ensure perfect legibility. The iconic Constellation claws and Roman numerals on the bezel are also beautifully enhanced with snow-set diamonds. At its heart beats the Omega Co-Axial Master Chronometer Calibre 8703, certified by METAS for exceptional precision and magnetic resistance up to 15,000 gauss. This self-winding movement offers a 50-hour power reserve and can be admired through the sapphire crystal caseback. The integrated bracelet, also in gold, continues the snow-set diamond pattern, creating a seamless flow of brilliance from case to clasp. Water-resistant to 50 metres, this Constellation represents the pinnacle of Omega’s expertise in both watchmaking and jewellery design, making it the perfect choice for the most prestigious occasions.
Full Specification
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Brand OmegaCollectionConstellationSeriesConstellationModel No131.55.29.20.99.003
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MovementMovement AutomaticCalibre 8703CaseCase Size 29 mmCase Thickness 12.2 mmCase Shape RoundCase Material Sedna™ GoldCase Back See-through Case BackLug Width 17.6 mmGlass Material Sapphire CrystalDialDial Colour Diamond pavéIndexes BatonStrapStrap Material Sedna™ GoldStrap Colour Rose GoldClasp Type Butterfly ClaspOtherPrecious Stone On Bezel, Dial & BraceletGender WomenWater Resistance (M) 50Warranty Period 5 YearsCountry of Origin Switzerland
Collection Video Discover the Constellation Collection
About the Omega Constellation Collection
Launched in 1952, the Constellation collection stands as one of Omega's oldest and most prestigious lines. Initially released as the brand's first mass-produced chronometer wristwatch, the collection quickly gained recognition for its exceptional precision and design. The Constellation's name and emblem, a Geneva Observatory surrounded by eight stars, pay homage to Omega's achievements in chronometry. These stars represent the eight chronometric awards Omega won between 1933 and 1952, underscoring the brand's relentless pursuit of precision. Today, the collection offers a diverse range of models, each embodying the brand's commitment to craftsmanship and innovation.
Design And Features
The Constellation series is renowned for its design elements, such as the distinctive "claws" and the half-moon facets on the case. As a collection of elegant dress watches, many Constellation watches feature diamonds or other gemstones on the bezel, dial, or case. Over the years, Omega has continually updated the Constellation collection, introducing new models and advanced movements. The range now includes over 500 models, catering to both men and women, with options in various materials and sizes.
The collection also offers a variety of strap and bracelet options, including the newly redesigned semi-integrated bracelet with its distinctive centre links and polished bevels. Despite its evolution, the Constellation remains a symbol of precision and luxury, embodying Omega's commitment to horological excellence.
Globemaster
The Omega Constellation Globemaster, reintroduced in 2015, was the first watch to boast the prestigious Master Chronometer certification. It reimagines the classic design elements of Omega's mid-20th-century Constellation watches while incorporating modern technology. This design is complemented by a fluted bezel, which, while reminiscent of Omega's heritage, brings a fresh sophistication to the watch's overall visual appeal and makes it a refined dress watch.

ABOUT THE MOVEMENT
The calibre 8703 is a quintessential in-house Omega movement with the signature co-axial escapement, the silicon hairspring, resistance against magnetic fields, and a Master Chronometer certification by METAS. It works on a self-winding mechanism and powers only the conventional hours, minutes, and seconds. It is a high-end movement with an 18K gold balance bridge and oscillating weight, visible through the caseback along with the Geneva waves in arabesque. Its 3.5Hz frequency ensures smooth timekeeping for approximately 50 hours once fully wound.
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- Brand Omega
- Reference 8703
- Movement Automatic
- Display Analog
- Power Reserve approx. 50 hours
- Frequency 25,200 bph
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