What Is a Fake Fifty Fathoms GMT?
A fake Fifty Fathoms GMT is a counterfeit copy of Blancpain's Fifty Fathoms dive watch fitted with a second time zone. It copies the case shape, the rotating bezel, and the fourth 24-hour hand, but it runs on a third-party movement and parts Blancpain never made. The real watch comes from Blancpain, uses an in-house calibre, and carries a serial number you can trace.
Counterfeits look close in photos and fall apart in the hand. The tells sit in the bezel, the dial print, the crown threads, and the movement behind the display back.
What Does the Genuine GMT Function Do?
A GMT watch tracks a second time zone on a 24-hour scale. On the Fifty Fathoms GMT, a fourth hand points to that scale while the main hands keep local time. Depending on the reference, the 24-hour scale sits on the dial, on the bezel, or on both.
Fakes copy the extra hand and skip the mechanism behind it. On many copies the GMT hand is glued to the hour hand or moves with it, which defeats the point of the complication.
The Fastest Tells on a Fake Fifty Fathoms GMT
Most counterfeits get the silhouette right and the small parts wrong. Put the watch in daylight, turn the bezel, and open the caseback.
Bezel and crystal
Blancpain fits sapphire bezel inserts with lume under the glass on Fifty Fathoms models. Cheap copies use printed mineral glass or flat ceramic that looks dull and scratches from a fingernail. A real bezel clicks on each marker with no wobble and no backplay. If the insert looks like a sticker, stop there.
Dial, hands, and date
The BLANCPAIN wordmark sits under 12 o'clock with tight spacing and sharp edges. Replicas show fuzzy print, uneven lume, and a date that sits off-center in the window. The GMT hand on a real Fifty Fathoms matches the finish of the hour and minute hands. Under a loupe, copies show rough plating and file marks at the hand base.
Case, crown, and caseback
Genuine cases show crisp lug bevels and even brushing. The crown is signed, screws down in two turns, and sits flush with the case band. Caseback engraving is deep and sharp, not laser-etched and shallow. Replica cases often measure a millimeter or two off the official spec, and the crown feels gritty when you wind it.
Movement
Open the caseback. A Blancpain calibre shows decorated bridges, blued screws, and a signed rotor, and it winds with a smooth, damped feel. Counterfeits carry Chinese or Japanese movements, or quartz in the cheapest grades. A decorated plate glued over a basic movement is the most common trick.
How Do Fake Fifty Fathoms GMT Tiers Differ?
The replica market splits into three rough grades. Each one fails on a different detail, and none of them come with a real movement or brand service.
- Low grade ($30 to $80): quartz or rough automatic, mineral glass, wrong case size, hollow bracelet.
- Mid grade ($150 to $300): automatic clone movement, closer dimensions, printed bezel insert, weak lume.
- High grade ($400 to $800): sapphire crystal, near-correct case specs, decorated movement plates, still a copy.
Price is the clearest signal. A working Fifty Fathoms GMT with box and papers never sells for a few hundred dollars, no matter what the listing claims.
What Does a Genuine Fifty Fathoms GMT Sell For?
Genuine Fifty Fathoms and Fifty Fathoms Bathyscaphe models trade in the thousands of dollars on the secondary market. Full sets with box, papers, and service records sit at the top of that range. Blancpain services its own watches and stamps the work, so a seller who cannot show a serial, a service record, or a clear movement photo is hiding something.
How Do You Check a Fifty Fathoms GMT Before You Buy?
- Pull the official specs for the reference from Blancpain and compare case size, thickness, water resistance, and lug width.
- Ask for sharp photos of the dial, the caseback, and the movement, not stock images.
- Request the serial number and any service paperwork, then confirm the number with Blancpain or an authorized dealer.
- Have a watchmaker open the case and check the movement, the gaskets, and the water resistance.
- Compare the asking price against recent sold listings. A discount of 80 percent means counterfeit, not a bargain.
- Buy through an escrow service or meet at a dealer, and pay with a method that gives you a refund path.
Is It Legal to Buy a Fake Fifty Fathoms GMT?
No. Selling counterfeits is illegal in the United States, and US Customs and Border Protection can seize counterfeit watches at the border. The Blancpain name and logo are protected trademarks, so import and resale carry legal risk. A fake also has no resale value and no service support, which makes it a poor purchase on top of the legal problem.
FAQ
Can you tell a fake Fifty Fathoms GMT from photos?
You can catch many of them, but not all. Print quality, bezel material, and dial spacing show up in good photos. Movement and caseback detail need a watchmaker with the case open.
Do replica Fifty Fathoms GMT watches keep time?
Some do for a while. Cheap movements run fast or slow, and gaskets leak, so water resistance claims on a copy mean nothing. Never swim with one.
Is a "Swiss Made" marking on a fake proof of anything?
No. Fakes print "Swiss Made" on the dial without meeting the legal standard, which requires substantial manufacturing work in Switzerland.