Short answer

A fake Omega Globemaster is a copy of the Constellation Globemaster that Omega launched in 2015 as its first Master Chronometer. Replicas come in steel, gold plate, and two-tone. Almost all of them run a modified ETA 2824, a Seagull ST2130, or a Hangzhou 6300. None run the Omega Co-Axial calibre 8900. Four checks catch most fakes: beat rate, bezel material, caseback medallion, and METAS paperwork.

Specs of the real Globemaster

  • Case: 39 mm in steel, Sedna gold, Moonshine gold, or platinum. The Annual Calendar model is 41 mm.
  • Movement: calibre 8900 for time and date, calibre 8922 for the Annual Calendar. Co-Axial escapement, free-sprung balance, silicon balance spring.
  • Frequency: 25,200 vibrations per hour, which is 3.5 Hz.
  • Power reserve: 60 hours.
  • Magnetic resistance: 15,000 gauss.
  • Accuracy: 0 to +5 seconds per day, tested by METAS over 8 tests.
  • Bezel: fluted tungsten carbide, grey in color and hard to scratch.
  • Dial: pie-pan shape, applied markers, a date window, and the Constellation star.
  • Crystal: sapphire with anti-reflective treatment on both sides.
  • Water resistance: 100 m.
  • Caseback: sapphire window with the 8-star Constellation emblem and Master Chronometer text.

Check 1: beat rate

Calibre 8900 runs at 25,200 vph, or 3.5 Hz. That is 7 beats per second. An ETA 2824 or a Seagull ST2130 runs at 28,800 vph, or 4 Hz. Put the watch on a timegrapher or a beat-rate app. A reading of 28,800 vph means the movement is not a real 8900. Few replicas use a 25,200 vph movement, and none of them use a Co-Axial escapement.

Check 2: bezel

The real bezel is tungsten carbide. It has a matte grey tone, not polished steel, and a steel tool does not scratch it. Replica bezels are stainless steel with a grey coating or PVD layer. The coating wears at the edges and shows bright metal underneath. Fluting on a fake is wider and shallower than on the real part.

Check 3: caseback and medallion

The real caseback shows the 8-star Constellation emblem and the words Master Chronometer. Engraving on fakes is shallow and the star points are uneven. The sapphire on cheap copies has no anti-reflective coating, so the movement looks dark or shows heavy glare from one angle.

Check 4: paperwork and serial

Every Globemaster ships with a METAS Master Chronometer card. The card carries a certification number and the movement serial. You can look up that number on the brand site. Replica cards do not match any real movement record. Case serials on fakes repeat across batches, so two watches from the same seller can carry the same number.

Movements inside replicas

  1. ETA 2824-2, Seagull ST2130, or Hangzhou 6300. 28,800 vph, 38 to 40 hours of reserve.
  2. A decorated 2824 with a fake rotor bridge and a fake balance cock. Sellers call it a clone 8900. The escapement is a standard lever.
  3. A quartz movement in low-cost versions. The second hand ticks once per second instead of sweeping.

Case size and weight

A real steel Globemaster at 39 mm weighs about 90 to 110 grams, depending on the bracelet or strap. Replica cases often measure 40 mm or 41 mm. Ask for a caliper photo of the case with the crown side down. Gold-plated fakes weigh less than a solid gold case of the same size.

Prices

  • Fake Globemaster: about $150 to $900.
  • Genuine steel Globemaster: about $6,000 to $8,000 at retail, less on the used market.
  • Genuine gold or platinum: $15,000 and up.

No replica has a solid Sedna or Moonshine gold case. A listing that claims solid gold at a few hundred dollars is false. Gold plate on a brass case wears through at the lugs and the crown within months of daily wear.

Legal note for the US

Federal law covers trafficking in counterfeit goods under 18 U.S.C. 2320. U.S. Customs and Border Protection can seize and destroy counterfeit watches at import. Selling a fake Globemaster that carries the Omega mark brings civil liability to Omega and possible criminal charges. Personal purchase is treated with less weight than resale, but the item can still be seized at the border and the buyer can lose the money.

Before you buy

  1. Ask for a timegrapher photo that shows beat rate and amplitude.
  2. Ask for a caliper photo of the case width.
  3. Ask for a photo of the METAS card and the case serial.
  4. Compare the crown logo, the date font, and the dial print with a known real photo.

If the seller will not send these, the answer is no.