A "Los Angeles" Seamaster clone is a replica of an Omega Seamaster model tied to the LA28 Olympic Games. No clone carries the genuine Co-Axial Master Chronometer movement. Case finish, dial print, bezel insert and lume separate a usable replica from scrap metal.
What "Los Angeles" refers to
Omega has been Official Timekeeper at every Summer Olympics since 1932 and holds the LA28 contract. Omega has tied Seamaster releases to past host cities, including Tokyo 2020, Beijing 2022 and Paris 2024. "Los Angeles" is a marketing label on the dial and caseback, not a movement specification. Confirm the exact reference number before you compare any replica, because two LA28 pieces can sit on different case platforms.
Genuine specs to compare against
- Seamaster Diver 300M: 42 mm case, 300 m water resistance, helium escape valve at 10 o'clock.
- Calibre 8800: Co-Axial escapement, 55-hour power reserve, METAS Master Chronometer certification.
- Ceramic bezel insert with enamel diving scale; laser-engraved wave dial.
- Sapphire crystal front and back; lug width 20 mm on the 42 mm case.
- Steel bracelet with push-button micro-adjust clasp.
If the LA28 edition uses the Planet Ocean 600M case, the numbers change: 600 m rating, calibre 8900, 60-hour reserve, and a thicker case. Check the reference before you grade a replica on the wrong dimensions.
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What separates a good clone from a poor one
Case finishing comes first. Look at the brushed flank and the polished chamfer at the lug. A sharp transition and even grain cost more to machine. Next, the dial: applied indices and a raised logo read better than pad print. The wave pattern should be etched into the dial, not painted on top.
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Bezel action is a fast test. Genuine Seamaster bezels turn with 120 clicks, no back play, and the triangle lands on 12. Most budget replicas fail here. Lume is another tell. C3 Super-LumiNova glows green and fades over hours; generic paint glows bright for minutes and dies.
Movements inside clones come from a short list: Miyota 9015, Hangzhou 6460, or a decorated copy of an ETA 2824. Some factories fit a visual clone of the 8800. None of these carry METAS certification, and none are tested to 15,000 gauss.
Checks before you pay
- Ask for the factory name and version number in writing.
- Request photos of the caseback engraving and the movement rotor.
- Check bezel alignment at 12 and back play.
- Confirm lug width and bracelet taper.
- Ask for a timegrapher reading: rate, amplitude, beat error.
- Get the return window in writing before payment.
Legal and practical limits
US Customs can seize counterfeit watches under 19 U.S.C. § 1526. Selling counterfeits is a federal offense under 18 U.S.C. § 2320. No clone ships with an Omega warranty. No clone holds METAS certification. Water resistance figures on replicas are claims, not test results, and no replica factory pressure-tests each unit to ISO 22810.
Treat a clone as a cosmetic item. Do not swim with it. Do not resell it as genuine.