Top pick: the automatic 42 mm steel version built on an Asian 7753-style chronograph with a 3-6-9 subdial layout and a date at 4:30. It puts the running seconds, the chronograph counters, and the date window where the genuine Breguet Type XXI puts them, and it is the format most buyers end up happiest with after a few months on the wrist. I judged every option on five points: whether the flyback pusher does anything at all, how closely the dial layout maps to the real reference, case and bezel finishing, crystal quality and water resistance, and how the watch wears on an average wrist.
Movement: Real Flyback or Decorative Pusher?
Flyback means one press of the reset pusher restarts the chronograph while it runs, instead of the usual stop, reset, start sequence. The genuine Type XXI uses a self-winding flyback caliber, and that function is the hardest part of the watch for a replica maker to reproduce. A stock 7750 or 7753 does not have flyback built in, so most replicas in this family run a standard chronograph and the extra pusher position is cosmetic or acts as a normal reset.
Pros
- 7753-based automatic: smooth sweep, quick-set date, and a 30-minute counter at 3 that matches the reference dial.
- Seagull ST19 manual wind: a column wheel gives a crisp pusher feel and a thinner case.
- Quartz: nothing to service and the lowest entry point, but the chronograph hand ticks once per second.
Cons
- Almost no replica in this style delivers a working flyback module, so the headline feature is often missing.
- Heavily modified movements are harder and more costly to service than a bone-stock chronograph.
- Quartz versions lose the mechanical feel that draws most buyers to a Type XXI in the first place.
Use case: buy the automatic if you want a functioning chronograph you can actually use. Buy the manual if you care about pusher feel and a slimmer profile. Skip quartz unless the watch is strictly a beater.
Dial Layout, Date Position, and Hand Finish
The genuine Type XXI is an asymmetric dial: running seconds at 9, a 24-hour day and night indicator, a date window, and syringe hands with luminous fill. Replicas get this wrong in predictable ways. The date lands at 3 instead of 4:30 on cheap builds, the 24-hour hand is printed rather than functional, and the subdial rings sit flat instead of recessed.
Pros
- Well-made dials use applied numerals and a sunburst or matte finish that reads correctly in daylight.
- Correct 4:30 date placement is the easiest single tell that the case and dial came from the same tooling.
- Good lume on the hands and hour markers holds a charge for a full night.
Cons
- 24-hour subdials on many replicas are decorative and do not track a real day and night cycle.
- Print quality on the chapter ring and the logo varies widely between batches.
- Hand length is often a millimeter short, which looks fine in photos and wrong in person.
Use case: if you plan to wear the watch daily, prioritize date placement and hand length over any other dial detail. Those two are what people notice.
Case, Bezel, and Crystal
The Type XXI case has a fluted, coin-edge style mid-case, a stepped bezel, and a mix of brushed and polished surfaces. On replicas, the fluting is either cut too shallow or polished when it should be brushed, which flattens the profile under indoor light.
Pros
- Machined fluting with sharp edges catches light the way the original does.
- Sapphire with an inner anti-reflective coating keeps the dial readable at an angle.
- A screw-down caseback with a real gasket gives reasonable splash resistance.
Cons
- Mineral glass scratches within months and shows a blue or purple cast.
- Stamped casebacks and thin gaskets mean you should not swim with it.
- Polished lugs on a brushed case are a cosmetic shortcut that shows up close.
Use case: sapphire is worth the upgrade if you wear the watch often. Treat any replica Type XXI as splash resistant at best, regardless of what the caseback says.
Strap, Size, and Daily Wear
A 42 mm case with a tall chronograph movement sits high on the wrist. Strap choice fixes most of that: a thick calfskin or rally strap balances the head, while a thin dress strap makes the watch look top heavy.
- Pros: quick-release spring bars make strap swaps easy, and a leather strap hides case-to-lug gaps.
- Cons: steel bracelets on replica cases often have hollow end links and a rattle that no amount of adjustment cures.
Inspection Checklist Before You Buy
- Run the chronograph for a full minute and press the reset while it runs. If the hand flies back and keeps counting, the flyback function is present. If it stops and resets, it is a standard chronograph.
- Check the date position. It should sit between 4 and 5 o'clock, not at 3.
- Look at the fluting up close. Sharp shadow lines mean machined, soft highlights mean stamped or polished.
- Confirm the crystal is sapphire, and tap it lightly with a fingernail to hear the duller ring sapphire makes.
- Ask for a photo of the movement through the caseback or the movement itself before paying.
- Wind the crown and feel for grit. A rough winding feel points to a dry or poorly finished movement.
Which Version Suits Which Buyer
For a first replica Type XXI, take the automatic with correct date placement and sapphire glass. It covers dress and casual wear and the chronograph works. For a collector who already owns chronographs and wants the vintage Type XX feel, the manual wind column wheel version is the more interesting object, even without flyback. For a travel or gym watch, quartz is the honest answer, since you will not miss a function you never use. Whatever you choose, verify the pusher behavior in person or on video before money changes hands, because that single test separates the options more than any other spec on the page.