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OMEGA constellation deville seamaster speedmaster specialities

Constellation 38 mm, Sedna™ gold on leather strap

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The unique OMEGA Constellation Sedna is the first watch to be crafted in 18K Sedna™ gold.

The two-zone silvery “pie-pan” dial features 18K Sedna™ gold indexes and hands. The brushed bezel, with its engraved Roman numerals, is mounted on a 38 mm polished 18K Sedna™ gold case and is presented on a brown leather strap.

This timepiece was produced in an edition limited to 1,952 pieces in a fitting tribute to the year OMEGA debuted the Constellation family. The OMEGA Co-Axial calibre 8501 at the heart of this wristwatch is visible through a transparent caseback.

Reference
123.53.38.21.02.001
Between lugs
25 mm
Lug‑to‑lug
41.7 mm
Thickness
12.5 mm
Case diameter
38 mm
Case
Sedna™ gold
Dial colour
Silver
Crystal
Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance
10 bar (100 metres / 330 feet)
Watch size
Gents
Total product weight (approx.)
127 g
Calibre
Omega 8501
Movement Type
Self winding
Power reserve
60 hours
Strap color
Brown
Strap type
Leather strap
Strap surface
Alligator leather
Strap underside
Non‑grained calf leather
Buckle type
Foldover clasp
Buckle material
Sedna™ Gold

Key materials

  • Material - Sedna<sup>TM</sup> Gold

    SednaTM Gold

  • Material - Sapphire Crystal

    Sapphire Crystal

SednaTM Gold

OMEGA has been using the exclusive 18K SednaTM Gold, its own fiery rose gold alloy, since 2012. Named after Sedna, an orbiting planetoid that has been described as one of the reddest in the solar system, SednaTM Gold not only bears all the standard characteristics of other 18K golds, but it also offers high resistance to the fading of colour and lustre over time. Its unique composition includes copper and palladium for colour and stability.

Sapphire Crystal

To really appreciate the finer details of a timepiece, OMEGA uses synthetic sapphire crystal with a highly scratch-resistant and anti-reflective treatment. Before the machining and finishing processes take place, the sapphire crystals are produced under the Verneuil process, also called flame fusion. It involves the melting of the raw substance using oxyhydrogen flame and the crystallisation of the melted droplets to form a cylinder. Graded 9 on the Mohs-hardness scale (graded 1-10), the resulting sapphire crystals are virtually scratch-proof and very hard, ensuring an unhindered vision at all times.

The advantages
of this watch

At the heart of this timepiece is the Co-Axial escapement, a revolution in watchmaking when first introduced. The reduced stress on the moving parts means less need for lubrication, longer-lasting accuracy and a more stable power reserve rate. In short, this timepiece performs better for longer.

Movement Calibre OMEGA 8501

Calibre 8501

Self-winding movement with Co-Axial escapement. Free sprung-balance, 2 barrels mounted in series, automatic winding in both directions. Oscillating mass and balance bridge in red gold. Luxury finish with exclusive Geneva waves in arabesque.

  • Self winding
  • 60 hours Power reserve
  • Frequency 3,5 Hz
Calibre 8501