The closest thing to a good replica Globemaster 40mm is not a replica at all. It is a pre-owned genuine Omega Globemaster Master Chronometer in 39mm, and it takes the top spot here on four criteria: case size against the real catalog, movement and certification, materials a factory cannot fake cheaply, and resale value. Replica listings win on price alone and lose on everything else. Here is how the options compare and what to inspect before you spend money.

The 40mm question

Omega builds the Globemaster Master Chronometer in 39mm and the Globemaster Annual Calendar in 41mm. There is no 40mm Globemaster in the catalog. The 40mm figure shows up mostly in replica listings, where sellers round the number or quote a case machined from their own drawing. That distinction matters. The pie-pan dial, the fluted bezel, and the bracelet end links are scaled to the real case, so a case that sits a millimeter off tends to show up as uneven dial spacing and wider gaps where the bracelet meets the lugs.

Option 1: pre-owned genuine Globemaster 39mm (top pick)

A used Globemaster from a dealer or a reputable auction house is the only version that carries the real movement. Master Chronometer certification is issued by METAS after eight days of testing on the finished watch, and it covers rate accuracy, magnetic resistance to 15,000 gauss, and power reserve. The bezel is tungsten carbide, which is dense, hard, and gives the watch a weight steel cannot match.

Pros

  • Certified movement with a published test standard, not a claim on a listing page.
  • Pie-pan dial finishing and faceted markers that hold up under a loupe.
  • Tungsten carbide bezel resists scratching and keeps the watch clean for resale.
  • Serviceable by any competent watchmaker, and it retains a large share of what you pay.

Cons

  • Costs several times what a replica listing asks.
  • Secondhand supply is thin, so you may wait for the dial color you want.
  • 39mm reads small on a large wrist, which is often why people search for 40mm in the first place.

Best for: buyers who want the actual object, plan to keep it, and care about being able to sell it later.

Option 2: homage and vintage-inspired watches

Several established brands make steel watches with pie-pan or crosshair dials and fluted bezels at a fraction of Omega pricing. They are legal to buy, they carry warranties, and they use movements you can have serviced. What they do not do is reproduce the Globemaster dial texture or the case profile, so the resemblance stops at a glance.

Pros

  • Real warranty, real service network, no customs risk.
  • Often available in 40mm and 41mm if 39mm feels tight.
  • Honest resale as a used watch rather than a seized counterfeit.

Cons

  • No Master Chronometer certification and no tungsten carbide bezel at this price.
  • The dial will not have the depth or print quality of the original.

Best for: someone who wants the silhouette and a clean record, and does not need the watch to fool anyone.

Option 3: the "1:1" replica Globemaster 40mm

Replica Globemaster listings tend to advertise a 40mm case, a sapphire crystal, a decorated automatic movement, and a "Swiss made" dial print. The one real advantage is price. Beyond that, the gap is structural rather than cosmetic. A replica bezel is steel or coated steel, so the weight and the way light rolls off the edge are different. The movement is a generic automatic with cosmetic plates, which means no METAS testing, no documented magnetic resistance, and no parts pathway when it stops. The case back is often the giveaway, because the engraving and rotor finishing do not match the standard of the front of the watch.

Pros

  • Low upfront cost compared with a genuine or pre-owned Globemaster.
  • Available immediately, in whatever dial color the seller has photographed.

Cons

  • Counterfeit goods are subject to seizure and forfeiture at the U.S. border, including single pieces brought in for personal use.
  • Trafficking in counterfeit goods is a federal offense, and sellers carry the criminal exposure.
  • No certification, no warranty, and no parts supply when the movement needs work.
  • Resale is close to impossible through any legitimate channel.
  • Water resistance claims on replica listings are unverified, so swimming is a bad idea.
  • Case dimensions come from the factory, not the catalog, so 40mm is a number rather than a specification.

Best for: nobody who wants a watch to keep. If you buy one anyway, treat it as a costume piece, keep it away from water, and do not expect it to hold value.

How to compare any listing that says Globemaster

  1. Measure the claimed case size against the catalog. 39mm and 41mm are real. A number in between usually signals a replica.
  2. Ask for a photo of the case back and the movement. Genuine Master Chronometer watches have a display back with finished bridges and a rotor marked for the certification.
  3. Weigh the watch. A tungsten carbide bezel and a steel case put a genuine 39mm in a range a replica rarely reaches.
  4. Check the bezel under light at an angle. Coated steel and solid tungsten carbide reflect differently at the edge.
  5. Ask what happens if the watch stops. A real service answer means a real watch.

Bottom line

If the search term is replica Globemaster 40mm, the honest answer is that the size does not exist in the real line and the replica does not replicate the parts that make the watch worth owning. A pre-owned 39mm Globemaster is the pick. A vintage-inspired alternative is the compromise. The replica is the option with the least upside and the most risk, and the risk is legal as well as financial.