The fastest way to identify a fake Breguet Type XX chronograph is the flyback test. On a genuine Type XX or Type XXI, you press the lower pusher while the chronograph is running, and the central seconds hand snaps back to zero and restarts in one motion. Quartz, meca-quartz, and standard Asian chronograph copies cannot do this. The four criteria below cover everything else, in order of how hard each one is to fake: flyback behavior, dial and subdial function, case back engraving and serial matching, and the paperwork trail.

Why the flyback test settles most cases

Breguet built the original Type 20 for French naval aviation in the 1950s, and the flyback, or retour en vol, was the reason the watch existed. A pilot could time each leg of a flight and reset the hand instantly without stopping and restarting the movement. That function requires a specific column wheel or cam layout inside the movement, and it is not something a decorative subdial can imitate.

Run the test in three steps:

  1. Start the chronograph and let it run for a minute or two.
  2. Press the lower pusher once, without stopping the chronograph first.
  3. Watch the central hand. On a real watch it returns to twelve and immediately starts moving again.

On a copy, the hand stops dead, refuses to reset until you stop the movement, or lands slightly off zero. Pusher feel matters too. Genuine Breguet pushers have short, firm travel and a clean click. Fake pushers often feel spongy or gritty.

Dial and subdial behavior

Subdial function is the second tell. Type XXI and the current Type XX references use a 24-hour indicator, which advances one hour for every hour of running time. Many copies use a 12-hour counter and print the numerals 1 through 24 to look correct. Run the chronograph for thirty minutes and the copy's hand will have moved twice as far as it should.

  • Check the Breguet signature under the twelve position. It should be sharp, correctly spaced, and printed or applied cleanly, with no bleeding at the edges.
  • Look at the hands. Breguet hands have a distinctive hollowed shape and a finished counterweight. Copies often use generic baton hands or a flat stamped version.
  • On vintage-style references, check the lume. An aged, cream-colored plot on a new watch that glows bright green in the dark is a sign of a copy.
  • Read the date window font and position against a reference photo of the same reference number.

Case back, serials, and paperwork

Genuine Type XX cases have crisp engraving on the back or, on modern references, a sapphire display back showing a finished movement with a decorated rotor and Breguet engraving. Counterfeits tend to have shallow stamping, a solid back where the real watch has a display back, or a generic movement visible through the glass with no brand engraving at all.

Ask the seller for the reference number, the case serial, and a photo of both. Breguet and its authorized service centers can confirm whether a serial corresponds to a real watch. A matching box, guarantee card, and service receipt raise confidence, but none of those items is hard to fake on its own, so treat paperwork as supporting evidence rather than proof.

The three kinds of Type XX fakes you will meet

Quartz and meca-quartz copies

  • Pros: keeps accurate time, lightweight on the wrist, and the chronograph usually works well enough for casual use.
  • Cons: the chronograph seconds hand ticks instead of sweeping, flyback is impossible, subdials are often decorative or wired to the wrong function, and no Breguet service center will touch it.

Best suited to someone who wants a watch-shaped object and does not care about mechanical behavior. Anyone who handles watches regularly will spot it in seconds.

Mechanical copies with generic chronograph movements

  • Pros: sweeping seconds hand, a winding or automatic feel, and case dimensions that are often close to the real thing.
  • Cons: no flyback, subdials that frequently count the wrong interval, mismatched finishing, and no parts interchangeability with a real Breguet movement.

Best suited to a buyer who wants mechanical feel at a fraction of genuine cost and accepts that the core function of the watch is missing.

High-end "super clone" builds

  • Pros: the closest external match, sometimes with correct fonts, proportions, and case finishing.
  • Cons: the most expensive and the most dangerous, because a convincing exterior makes it easy for a dishonest seller to pass it off as genuine. It still fails the flyback test and still has a movement no watchmaker can source parts for.

Best suited to nobody who plans to buy or sell watches in good faith. This category is where fraud claims and police reports come from.

Legal and practical risk in the United States

Counterfeit watches are illegal to import and sell in the United States. Shipments are subject to seizure by U.S. Customs and Border Protection, and selling a counterfeit as genuine is a criminal offense. Beyond the law, a copy carries no warranty, cannot be serviced by the brand, and has essentially no resale value once a buyer notices. If you buy one believing it is real, you have almost no practical route to recover your money from an overseas seller.

If you want the Type XX look without the risk

Two honest paths exist. The first is a legitimate aviation-style chronograph from a mainstream brand that borrows the pilot-watch formula without copying Breguet's name or design. The second is a used genuine Type XX or Type XXI bought through an authenticated channel, with the serial verified and a service history in hand. A real watch holds value, can be serviced, and needs no excuses.

Use-case recommendation: if you want the silhouette and the legibility of a pilot chronograph, buy an honest homage. If you want a Breguet, buy a Breguet with verifiable papers. Skip the middle ground entirely.

Pre-purchase checklist

  1. Run the flyback test and confirm the reset happens while the chronograph is running.
  2. Run the chronograph thirty minutes and confirm a 24-hour subdial advances by thirty minutes, not two hours.
  3. Compare the dial, hands, and date font against a photo of the exact reference number.
  4. Photograph or record the case serial and reference number before paying.
  5. Ask Breguet or an authorized service center to confirm the serial.
  6. Insist on a return window in writing, including a right to return if authentication fails.