Short answer
A fake Globemaster 7407 usually fails on four checks: case dimensions that do not match the reference, dial printing that is too thick or too glossy, a caseback medallion with soft detail, and a movement serial that sits outside the correct production block. Work through those four before money changes hands. A watch that passes all four still needs a hands-on inspection, because redials and franken builds use genuine cases with wrong parts inside.
Before you start
- A digital caliper
- A 10x loupe
- A bright, diffused light source
- Full resolution photos from the seller
- Access to Omega reference and serial records
How to check a Globemaster 7407
- Ask the seller for close, sharp photos of the reference and serial stamps before you discuss price.
- Measure the case width, lug to lug, and thickness with the caliper.
- Compare your numbers against the published specifications for the reference, allowing for light polishing.
- Study the dial print under the loupe and note the weight of the lettering.
- Look at the minute track and check that every marker sits at an even distance from the next.
- Turn the watch to a raking angle and watch how light crosses the dial surface.
- Inspect the caseback medallion with the loupe and trace the outline of the relief.
- Check the crown for correct size, logo depth, and a clean thread start.
- Open the caseback and read the movement serial and caliber stamp.
- Match the movement number range to the case reference and the era of the dial.
- Confirm the dial, hands, case, and movement belong to the same production period.
Fake tells that show up most often
- Dial text with rounded, fat edges instead of crisp engraving
- A glossy reprint over an originally matte or lightly grained surface
- Medallion detail that looks poured rather than struck
- Case lugs with the wrong curve or an oversized crown
- Serial stamps cut with a modern rotary tool, leaving burrs
- Hands that are the wrong length or finish for the reference
- A crystal with the wrong dome profile
- Movement screws with fresh tool marks on a watch sold as untouched
Redials and franken watches
Most bad Globemaster 7407 watches are not complete copies. They are real cases paired with reprinted dials, later hands, or a movement pulled from another model. These pass a photo check and fail an in-hand check. The dial is the usual giveaway, because reprinting almost never matches the original stamping depth or the exact spacing between the signature and the model name.
Modern replica Globemaster watches
A current replica of the modern Globemaster is a different object from a vintage 7407 copy, and the two get confused in listings. Modern replicas copy a pie-pan dial and a fluted bezel, and they are sold openly as replicas. The vintage 7407 is the harder case, because copies are sold as original watches with original prices attached.
When to walk away
Walk away if the seller blocks an inspection, refuses to open the caseback, or pressures you with a short deadline. A genuine watch survives every check on this list. A watch that needs you to skip steps is the one that fails them.