The short answer
If a Globemaster 7407 is offered at a fraction of what vintage Omega pricing suggests, treat it as a replica until the caseback and the movement prove otherwise. Most watches sold under that label are gold-plated cases built in a mid-century style, fitted with a generic automatic, and stamped with the 7407 number because buyers recognize it. The three checks that expose them fastest are the dial printing under magnification, the crown and lugs, and the movement you see once the back comes off.
What the 7407 reference is
The number sits in the era of mid-century Omega references, the same family that produced the Constellation and its US-market Globemaster sibling. Two things follow from that. Original examples are old enough that condition varies wildly, which is exactly the fog a replica seller wants. And because it is not a modern catalog number, you should not expect modern case proportions or a modern movement behind the dial.
Because the reference is old, the honest answer to "is this real" never comes from a single listing photo. It comes from a set of checks a faker has to pass all at once, and they rarely do.
Where fakes fall down
Dial and printing
Read the text before you read the watch. On a genuine mid-century dial the lettering is thin and crisp, inked with even pressure. On a fake Globemaster 7407 the font runs a hair too bold, the spacing between words is uneven, and the minute track is printed thick enough to look like a decal. Applied markers sit slightly proud or crooked. Lume plots, when present, are flat and uniformly colored, which is wrong on a watch that should show decades of patina.
Case, lugs, and crown
Original Globemaster cases were built to be serviced for generations, so the lug profiles are deliberate and the edges are sharp without looking raw. Replicas tend to have softer lugs, a thicker caseband, and a crown that sits too tall or too far from the case. Then check the gold itself. Solid gold cases show wear along the lugs and caseback edges. Plating wears through at the crown and the caseback lip, and a different color shows underneath.
Caseback and movement
This is the part photos hide. Genuine casebacks carry a reference and serial struck with a die, so the numbers have depth and a slight bulge at the edges. Laser etching looks shallow and too clean. Inside, a real Omega of that period runs a bumper or full-rotor automatic with a signed rotor and visible finishing. A replica usually has an unsigned or roughly stamped movement, often at a different beat rate. Ask for a photo of the movement and the inside of the caseback before you talk money. Sellers of genuine vintage watches send those without hesitation.
What replicas get right, and what they don't
- Silhouette: modern replicas capture the general shape, which is why photos taken at a distance look convincing.
- Dial color: aged champagne and cream tones are hard to fake, and most replicas land on a flat, uniform shade.
- Weight and feel: solid gold has a heft that plated brass or steel does not match, though you need the watch in hand to judge.
- Strap and buckle: usually the weakest part, generic leather with a stamped buckle that matches no period.
Price signals
Pricing is the loudest tell. Vintage Globemaster and Constellation pieces in solid gold trade in the thousands of dollars depending on condition and originality. A first copy Globemaster 7407 at a few hundred dollars is not a bargain, it is a different product category. If a seller claims solid gold at a replica price, one of those two statements is false. Ask for the weight in grams. Gold cases are heavy, and that number will not lie.
Checklist before you buy
- Ask for macro photos of the dial, crown, caseback stamp, and movement.
- Match reference number, dial style, and movement to the same era.
- Weigh the watch and compare grams to known examples of similar size.
- Request service history or a movement photo showing the signature and finishing.
- Pay with a method that has a return window, and get the terms in writing.
- If the seller dodges any of the above, walk. There are other watches.
None of this is complicated. It just takes patience, a loupe, and a willingness to ask for the photos nobody wants to send.