Catch FakesGet the App
Authentication Guide · Omega · 131.23.39.20.02.002

How to Spot a Fake Omega Constellation 131.23.39.20.02.002

Learn to identify counterfeit Omega Constellation 131.23.39.20.02.002 watches with expert tips on movement, dial, and more.

Omega Constellation
Photo: JingKe888 · by 2.0 · source
By Catch Fakes Authentication Desk4 min read

The Omega Constellation 131.23.39.20.02.002 is a distinguished timepiece, celebrated for its precision and elegant design. However, its popularity has also made it a prime target for counterfeiters. With the market flooded with fakes, distinguishing a genuine piece from a replica can be daunting. The stakes are high, as purchasing a counterfeit not only results in financial loss but also diminishes the brand's heritage. This guide will arm you with the knowledge to authenticate this specific Omega model, ensuring your investment is safeguarded.

The Dial Printing

Examine the dial of the Omega Constellation 131.23.39.20.02.002 closely. Genuine models feature a sun-brushed silvery dial with a silk-like pattern, and the text should be crisp and perfectly aligned. The 'Omega' logo and the star symbol should be applied, not printed. Counterfeit dials often have smudged or misaligned text, and the star may be printed rather than applied.

Movement Calibre

This model houses the Omega Co-Axial Master Chronometer Calibre 8800. A genuine movement will exhibit exquisite finishing, including Geneva waves in arabesque. Counterfeit movements often lack this level of detail and precision. If possible, have a watchmaker open the caseback to verify the movement's authenticity.

Bezel Material and Engravings

The bezel of the Omega Constellation 131.23.39.20.02.002 is made of 18K Sedna™ gold, which should have a warm, lustrous hue. The Roman numerals on the bezel should be sharply engraved and evenly spaced. Replicas might use cheaper materials and exhibit uneven or shallow engravings.

Caseback Engravings

Turn the watch over and inspect the caseback. The genuine caseback should have the Constellation Observatory medallion, which is intricately detailed. The engravings should be deep and precise, with no signs of rough edges or inconsistencies that are often seen in fakes.

Bracelet End-Links and Clasp

The bracelet of this Omega model is a combination of stainless steel and 18K Sedna™ gold. The end-links should fit seamlessly with the case, and the clasp should bear the Omega logo with a smooth, secure closure. Counterfeit bracelets may show gaps between the end-links and case, and the clasp might feel flimsy or have a poorly executed logo.

Weight and Sound

A genuine Omega Constellation 131.23.39.20.02.002 has a substantial weight due to its high-quality materials. When handling the watch, it should feel solid and balanced. Additionally, the movement should operate silently; any ticking noises are a red flag for a fake.

Red Flags at a Glance

  • Smudged or misaligned dial text
  • Printed instead of applied star logo
  • Missing Geneva waves in movement
  • Uneven bezel engravings
  • Rough caseback medallion edges
  • Loose bracelet end-links
  • Flimsy clasp mechanism
  • Noticeable ticking sound

FAQ

What movement does the Omega Constellation 131.23.39.20.02.002 use?

It uses the Omega Co-Axial Master Chronometer Calibre 8800.

What materials are used in the bezel of this model?

The bezel is made of 18K Sedna™ gold with engraved Roman numerals.

How can I verify the authenticity of the caseback?

Check for the Constellation Observatory medallion with precise, detailed engravings.

Final Word

Authenticating an Omega Constellation 131.23.39.20.02.002 requires a keen eye for detail and knowledge of the brand's craftsmanship. While these guidelines provide a robust framework for identifying fakes, it's always wise to consult with a professional watchmaker or authorised dealer for a second opinion to ensure your timepiece is genuine.


Want a second opinion in seconds? Watch Authenticator scans a photo and runs the same checks — dial, crown, rehaut, caseback, movement — flagging anything off. Try it →