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Trésor Master Co‑Axial Chronometer 40 mm

Sedna™ gold on leather strap

432.53.40.21.02.002

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Description

Characterised by its thin and classic gold case, the Trésor line was first launched by OMEGA in 1949 and housed the legendary 30mm calibre. More than half a century later, the De Ville Trésor has been reintroduced, equipped with one of the most advanced mechanical movements the brand has ever unveiled.

This model has a silvery opaline dial with a domed vintage "clous de Paris" structure and a date window at 6 o'clock. The 40 mm 18K Sedna™ gold case is presented on a brown leather strap with an 18K Sedna™ gold buckle. This De Ville Trésor is powered by the anti-magnetic OMEGA Master Co-Axial calibre 8511 - a unique manual winding movement.

5-Year Warranty

All OMEGA watches are delivered with a 5-year warranty that covers the repair of any material or manufacturing defects. Please refer to the operating instructions for specific information about the warranty conditions and restrictions.

Features

  • Anti‑magnetic

  • Chronometer

  • Date

  • Sedna Gold™

  • Transparent case back

Technical Data

  • Between lugs: 20 mm
  • Bracelet: leather strap
  • Case: Sedna™ gold
  • Case diameter: 40 mm
  • Dial colour: Silver
  • Crystal: Scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
  • Water resistance: 3 bar (30 metres / 100 feet)

A new look for your watch

Your watch and strap should go together perfectly, but that doesn't mean you can't experiment with different combinations. Why not mix things up and see what happens? You may discover a look that's as individual as you are.

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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.

Movement CALIBRE OMEGA 8511

Calibre 8511

Manual winding movement with Co-Axial escapement. Resistant to magnetic fields greater than 15,000 gauss. Free sprung-balance with silicon balance spring, two barrels mounted in series. Balance bridge in red gold. Luxury finish with exclusive Geneva waves in arabesque.

  • 60 hours Power reserve
  • Manual-winding
Calibre 8511

Variations TRÉSOR Master Co‑Axial Chronometer 40 mm

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