Short answer
The code 151.10.45.50.01.001 does not match any reference number in Omega's public Constellation catalog. The six-group format copies Omega's convention. The digits are not an Omega product code. A listing that uses it describes an unlicensed watch, not a factory model.
I could not verify 151 as an Omega family code. No Omega document I can find uses it.
The Omega reference format
Omega writes references as 14 digits in six groups, split by dots. A genuine example is 131.10.39.20.01.001. Group one is the family code. Group three is case diameter in millimeters. Group five is dial color, where 01 marks a black dial in most listings. Group six counts variants.
Read against that scheme, 151.10.45.50.01.001 claims a 45 mm case. Omega lists Constellation cases from 25 mm to 41 mm. The line has no 45 mm model.
What "fake Constellation" means
A fake Constellation is a watch that carries the Constellation name, the star logo, or Omega markings without a license from Omega. Sellers group these watches by copy quality. "Swiss replica" and "super clone" are seller terms for higher-priced copies. The terms describe the copy, not a factory. The watches are unlicensed goods in each case.
Why the code shows up in listings
- It fills the reference field that buyers check first.
- It reads like a catalog number, so a listing looks like a real SKU.
- It lets a seller reuse one photo set across several listings.
How to check a Constellation reference
- Search the full 14 digits on Omega's own site. Omega lists current and past references there.
- Compare the diameter in group three to the case in the photos. A 45 mm case and a 39 mm reference do not match.
- Ask for the pictograms card, the warranty card, and a case back photo. Those items carry the same reference string.
- Check the movement number against the reference. A mismatch points to a mixed or copied watch.
Omega does not run a public serial number lookup. A dealer or a watchmaker with an Omega account can check a serial for service history.
Legal status in the US
Counterfeit watches are illegal to import, sell, or traffic in the United States. 18 U.S.C. 2320 covers trafficking in counterfeit goods. A first offense carries up to 10 years in prison. A repeat offense carries up to 20 years. CBP officers seize counterfeit watches at ports and mail centers.