Answer first
A counterfeit Omega Seamaster is an unauthorized copy sold as an Omega. It is not made by Omega. It has no Omega warranty. Sellers use replica and fake for the same unlicensed product. Check the case back, dial, movement, serial number, bracelet clasp, and paperwork. A price far below market and a seller with no history are red flags.
Omega Seamaster Los Angeles Clone Watch: A Buyer's Guide
Case and case back
Compare the case back to the exact reference. Omega engraving has sharp edges and consistent depth. Fake case backs show shallow cuts, wrong fonts, and missing reference numbers. On a Diver 300M, check the helium escape valve at 10 o'clock. Check the crown guards and lugs. Gaps and sharp edges are common on copies.
Dial and hands
The Seamaster Diver 300M has a ceramic dial with a laser-engraved wave pattern. The date sits at 6 o'clock. The hands have polished edges and even lume. A counterfeit often has a flat wave print, a wrong date font, and uneven lume. Check the logo and the Seamaster text under a loupe. Misaligned print is a sign of a copy.
Movement
A genuine Seamaster Diver 300M uses an Omega Co-Axial Master Chronometer caliber 8800. It has a 55-hour power reserve. METAS certifies the movement. A counterfeit often uses a generic automatic or quartz movement. The rotor text, balance wheel, and finishing look different. Ask for a movement photo and a timegrapher reading. A seller who refuses is a risk.
Omega Seamaster Los Angeles Clone: A Comprehensive Guide
Serial number and paperwork
Check the serial number location for the exact model. Omega links the serial to the movement and the warranty card. A counterfeit often has a serial that does not match the paperwork. The card font and stamp can be wrong. The box can look close. Paperwork alone does not prove a watch is genuine.
Bracelet, clasp, and price
Check the clasp code, end links, and screw heads. Genuine clasps have clean stamping and a tight fit. A new steel Seamaster Diver 300M lists above $5,000. A full-set offer at $900 is not plausible. Buy from a seller with a return policy and a history of watch sales.
What checks cannot prove
Photos cannot prove a watch is genuine. A good counterfeit can pass a photo check. Use a watchmaker with Omega experience. Ask for a service record and an insurance appraisal. Customs can seize counterfeit watches. Omega trademarks are protected in the US and Switzerland.