What is a replica Type 21 flyback watch?
A replica Type 21 flyback is a copy of the Breguet Type XXI (Type 21) flyback chronograph, a French military-inspired pilot watch whose chronograph can be reset and restarted with a single pusher press. In the replica market the term covers 1:1 and first copy versions of the 42 mm steel model with rotating bezel, central chronograph minute hand, and 24-hour subdial. Buyers pick it because genuine models cost five figures, while a good replica delivers the same dial layout and flyback action for a fraction of that.
How does the flyback complication work?
A standard chronograph needs three actions to time a new event: stop, reset, start. A flyback (retour en vol) movement does it in one, because pressing the lower pusher at 4 o'clock resets the running hands to zero and restarts them instantly. That function was built for pilots who had to begin timing a new leg of a flight without looking down at the watch.
What should you check before buying?
- Movement type: most 1:1 versions use a modified ETA 7750 or a Seagull ST19 with a flyback module. Ask whether the flyback is genuine or faked by the pusher sequence.
- Hand reset: run the chronograph, then press the flyback pusher. Hands should snap back to 12 and restart with no lag.
- Dial layout: central chronograph seconds and minute hands, small running seconds at 9, 24-hour subdial at 3, and a date window.
- Case and bezel: 42 mm is correct for the Type XXI; the bidirectional bezel should turn with even friction or clear indexed steps.
- Crystal and finishing: sapphire with inner anti-reflective coating, brushed case flanks, polished lugs, coin-edge caseband.
Which version looks closest to the original?
The closest replicas copy the Type XXI 3810 in stainless steel with a black or silver guilloche-style dial, paired with a steel bracelet or leather strap. Study the Breguet script, the numeral font, and the caseband fluting, since those details separate a first copy from a budget fake. Weight and pusher feel matter as well; a build on a real 7750 base usually feels closer to the original than a quartz version.
Is a replica Type 21 flyback worth it?
If you want the pilot chronograph look and a working flyback without paying a five-figure price, a well-made replica is a sensible option. Buy from a seller who posts real photos of the movement and offers a return window. Expect the flyback action to be the first thing to fail on cheaper builds.