Answer first
A replica Constellation 131.20 is a counterfeit copy of an Omega Constellation watch whose reference number begins with 131.20. The 131.20 prefix is Omega's code for a Constellation case in stainless steel and Sedna gold, the brand's rose gold alloy. The digits after the prefix set case size, movement, dial, and stone set. The copy is made by an unlicensed factory. Omega does not make it, sell it, or service it.
Replica Constellation 131.20: What the Number Means
What 131.20 covers in the real catalog
Omega uses 131.20 across several Constellation variants. The suffix decides the rest. Common examples include 131.20.25.20.55.001 and 131.20.29.20.55.001. Read the full number before comparing anything.
replica constellation 131.20 en us
- Case: steel body with Sedna gold bezel, claws, and side links.
- Sizes: 25 mm, 28 mm, and 29 mm appear under the 131.20 prefix. Check the size digits in the suffix.
- Bezel: diamond-set on most 131.20 variants.
- Dial: mother-of-pearl with diamond hour markers on the usual versions. Code 55 marks the dial type.
- Movement: Co-Axial Master Chronometer calibre 8700 series on the 29 mm automatic. Quartz calibre 4061 on the smaller cases.
- Other specs: sapphire crystal, 50 m water resistance, METAS certification on the automatic models.
What replica sellers claim
Sellers list these watches as 1:1, Swiss made, or super clone. The claims repeat across listings. Most listings do not name the factory. Few show a movement photo. Words like Swiss made carry no weight on a counterfeit watch, because no Swiss authority certifies it.
replica constellation 131.20 question
- Claimed solid Sedna gold. Actual product is usually steel with gold plating.
- Claimed VS-grade diamonds. Actual stones are usually cubic zirconia or moissanite.
- Claimed clone calibre 8700. Actual movement is often an Asian automatic or a quartz unit.
- Claimed full set with box and papers. Numbers on the card are frequently duplicated across units.
Where copies differ from the original
- Gold: plating runs a few microns thick. The genuine bezel and claws are solid Sedna gold. Weight differs by a measurable margin.
- Stones: count, size, and setting quality vary. A diamond tester answers the question in seconds.
- Movement: rate, beat, and finishing differ. No METAS certificate exists for the copy.
- Dial: mother-of-pearl sheen and index placement vary between batches.
- Caseback: engraving depth and font are shallow on most copies. The Observatory medallion is stamped, not applied.
- Bracelet: end-link fit and clasp stamping are the usual weak points.
Checks before paying
- Ask for the full reference number and confirm it matches a real 131.20 variant.
- Request a photo of the movement and the caseback engraving.
- Ask for the case weight in grams and compare it with a published figure.
- Test the bezel stones with a diamond tester. Do not rely on a certificate printed by the seller.
- Compare the asking price with genuine retail. A copy priced near retail is a red flag.
- Confirm the return policy in writing before payment.
Legal position and after-sales
In the United States, trafficking in counterfeit goods is a federal offense under 18 U.S.C. 2320. Customs can seize shipments. Omega will not authenticate, repair, or warrant a copy. Resale value is close to zero. Service on a replica movement depends on a local watchmaker and on parts availability, which is not guaranteed for any given batch.