Quick answer
5710 is not an Omega reference number. Omega reference codes use a five-group dotted format, for example 210.30.42.20.01.001. A four-digit code like 5710 shows up in replica catalogs as a seller SKU. It labels a listing, not a model. No public Omega catalog, service document, or caliber list uses 5710 as an identifier.
Where the code comes from
- Replica wholesalers assign short codes to speed up order entry and stock tracking.
- The same watch can carry 5710 at one seller and a different code at another.
- The digits can map to a factory batch, a case size, or a dial color. Sellers do not publish the mapping.
- 5710 is also not an Omega caliber number. Current Omega calibers include 8800, 8900, 9900, and 3861.
Specs that appear on 5710 listings
Most pages using this code describe a dive watch format: stainless steel case, 42 mm diameter, sapphire crystal, automatic movement, ceramic bezel insert, and a claimed 300 m water resistance. Numbers change from seller to seller and from batch to batch. Confirm each spec in writing before payment.
Checks that matter
- Movement. Ask for a photo of the movement and the rotor engraving. Asian automatic clones and Swiss ETA units both appear in this market.
- Case size. Measure with calipers. A listed 42 mm case can measure 41.5 mm to 42.5 mm.
- Crystal. Sapphire holds a tight water bead. Mineral glass spreads it.
- Weight. A steel 42 mm dive watch on a bracelet sits between 150 g and 190 g.
- Lume. Charge the dial under a lamp for 30 seconds, then check it in a dark room.
- Water resistance. Pressure testing is the proof that counts. Gaskets on replica cases fail at 50 m in many test reports posted by owners.
Price bands
Replica Omega divers sell for about $150 to $600. Top tiers claim Swiss movements and machined cases. Price alone does not prove quality. Request the same photos on two different days and compare lighting, date wheel position, and bracelet end links.
US legal position
- 18 U.S.C. § 2320 covers trafficking in counterfeit goods. A first offense by an individual carries up to 10 years in prison and a $2 million fine.
- US Customs and Border Protection can seize and destroy counterfeit watches at the border.
- Importation of counterfeit goods is prohibited. Personal-use purchase is not the same charge as resale, but the shipment still faces seizure.
What is not known
No public record names the factory behind the 5710 code. No independent lab data confirms the movement origin or the water resistance claim on these listings. Ask the seller. Treat the answer as unverified.