The short answer
A fake Master Geographic is worth buying when the city disc, the second time zone hand and the dial printing hold up at arm's length. That is the test most cheap versions fail. Wrong city order, dropped accents, a 24-hour track that does not line up with the names around it. Spend more and those details tighten up, though the case back is where the honest differences show.
What the real watch asks a factory to do
The Master Geographic is Jaeger-LeCoultre's travel watch, and its dial is crowded in a way that punishes lazy tooling. A date at three, a second time zone subdial at six, a 24-city disc riding inside it, and applied markers around the outside. Every one of those elements has to be produced and then aligned by hand during assembly. That alignment, not the case shape, is what separates a replica you can wear for years from one you resell in a month.
Dial checks
- City disc. Twenty-four names, spelled right, in the correct order. Look for Wellington, Caracas, Tehran. Cheap discs drop cities or mangle the letters.
- 24-hour scale. The numbers should line up with the noon and midnight positions of each city. Rotate the disc and watch whether the track drifts out of register.
- Printing. French text on a JLC dial carries accents. If the word for automatic has lost its mark, or the serif type looks soft and fuzzy, the printer cut corners.
- Hands. The hour and minute hands should have polished facets that flash as light moves across them. A flat, painted hand is a giveaway.
- Date window. Sharp aperture, correct font, digits centered. Look for a thin gap of dial color showing around the cutout.
- Indices. Applied and faceted, not printed. With the watch in hand, a fingernail should catch on the edge of one.
Case and crystal
The Master Geographic is usually a 39 mm watch, and replicas tend to run a millimeter or two thicker because a module sits on top of the movement inside. Measure it if thickness matters to you. The crystal should be sapphire with a clear anti-reflective coating, and the dial should stay legible under a lamp instead of washing out grey. The bezel is thin and polished, so a wide one means the proportions are off. Lug shape matters as much as lug width, since it changes how the strap falls.
What is inside the case
Nobody builds a true clone of the JLC calibre 939 at replica prices. What you get is a decorated automatic, often a Miyota 9015 or a Chinese 2824 derivative, with a module added to drive the second time zone and city disc. The engraving on the rotor is cosmetic. Function is what counts. Ask how the second time zone is set, whether the date flips cleanly at midnight, and whether the city disc moves with the crown or with a pusher that does not exist on the original. Test the winding feel. A gritty crown on day one turns into a repair bill later.
Questions to ask before you pay
- Are these photos of the actual watch, or catalog renders?
- Can you send a caseback shot and a wrist shot?
- Which movement is inside, and is the second time zone module working?
- What is the return window, and who pays shipping if it goes back?
- Does the price match the tier, or is it low for a city disc that actually rotates?
Bottom line
Buy the dial, not the box. If the city disc, the 24-hour track and the printing survive a close look, the rest of a fake Master Geographic is usually good enough for daily wear. If those three things are wrong, no amount of packaging fixes it. Compare against official photos of the exact reference you want, down to the spacing between the subdial and the date window, and the duds become obvious fast.