A "replica Omega 3604" is a counterfeit watch, not an Omega model. Omega has no product line by that name, and the number in those listings is borrowed from genuine vintage reference stamps to make a mass-produced copy look credible. In the United States, importing, selling, or trafficking that watch violates federal trademark law, and shipments are routinely seized at the border.
Where does the "3604" number come from?
Counterfeit sellers pull reference numbers out of vintage Omega catalogs and caseback stamps, then print them on factory copies to imply a real lineage. Because the number travels with the copy rather than the original, it proves nothing about the watch in the photo.
Two different sellers can use the same number for two completely different watches. That inconsistency is one of the easiest ways to spot a catalog built from stock factory images.
Is it legal to buy a replica Omega in the US?
Buying counterfeit goods is illegal. US trademark law allows both civil suits and criminal prosecution for trafficking in counterfeits, and Customs and Border Protection can seize and destroy the shipment without compensation.
Online marketplaces outside the country do not shield the buyer. The seizure happens at the port of entry, and the loss falls on whoever paid for the watch.
How can you tell a counterfeit from a genuine Omega?
- Reference number on the caseback does not match the movement or dial configuration described online.
- Seller cannot provide a serial number, service history, or original box and papers.
- Price is a small fraction of the secondary market value for the same vintage reference.
- Photos are low resolution, watermarked, or reused across multiple unrelated listings.
A genuine vintage Omega can be verified through an authorized service center or an independent watchmaker who checks the movement and case numbers.
What should a buyer do instead?
Look at entry-level Omega models on the legitimate secondary market, including quartz and older mechanical pieces that sit close to replica pricing. Auction houses and established dealers publish realized prices, which gives a realistic baseline.
If the goal is simply a vintage look at a low cost, there are unbranded homage watches that copy a general style without copying a trademark. They carry no legal exposure and no risk of seizure.
Why do replica listings keep reappearing?
Counterfeit sellers rebuild storefronts faster than platforms remove them, and search results recycle the same reference numbers. Treat any listing that leads with a reference number plus the word "replica" as a counterfeit signal, not a product name.