Among military watch enthusiasts, there are numerous hero pieces. Most famous are the 12 time-only-with-small-seconds W.W.W. watches commissioned by the British Ministry of Defence, and now known as the “Dirty Dozen”.

Read more about the “Dirty Dozen”, here.

There are also the various military issued Submariners, from both sides of the Wilsdorf household, all of which are now commanding astronomical figures. Or Blancpain’s Tornek-Rayville watches that are now completely untouchable. That is if you can find one in half decent condition.

But among the most desirable, with hardly a dip in popularity or value since the watch industry’s revival began in the 1980s, are the French Aéronavale chronographs, best exemplified by the Breguet Type XX.

Some Basics

A 1955 Breguet, Type 20, ref. 5101/54 with the black sterile dial, sold by Phillips Watches at their May 2018 Geneva sale for CHF 43,750 (Image: Phillips Watches)
A 1955 Breguet, Type 20, ref. 5101/54 with the black sterile dial, sold by Phillips Watches at their May 2018 Geneva sale for CHF 43,750 (Image: Phillips Watches)

A bit about nomenclature before proceeding: only Breguet uses Roman numerals to identify its versions, and yet the company never featured it on the dials. Everyone else used the Arabic “Type 20” (and later Dodane’s and Seliva’s “Type 21”), many makers printing this on the dial above the 6 and one or two placing it below the company name at 12.

Although a post-war design, visually the Type 20 owes much of its layout to Second World War chronographs made by Hanhart, Tutima, Glashütte and others for the Luftwaffe. Mainly with two registers and two pushers, these watches featured white numerals against black dials, a 60-second counter at 9 o’clock, a 30-minute counter at 3 and oversized hands on the latter sub dial. Most also featured fluted rotating bezels with a single marker to help indicate elapsed time.

In 1954, the Type 20 chronographs were commissioned by the French government for the French Air Force, the CEV (Centre d’Essai en Vol) — the country’s state-sanctioned flight testing centre — and most famously for the Aéronautique navale, a.k.a. “Aéronavale.” The air arm of the French Navy, it was created in 1912 at the birth of aviation and it is active to this day, with carrier squadrons and a naval patrol air force.

In fact, the term “type 20” wasn’t one that the watchmakers came up with, rather it was the standard by which the French military had commissioned the watch to the several watchmakers who took it on.

Given that the watches were, however, issued to three separate arms of the French military, engravings were made on the back of the watches to distinguish one from the other. But that’s a whole other — extensive — point of interest.

The earliest Type 20s delivered are known to have what is termed the sterile black dial. That is to say these were devoid of any branding from the watchmaker, with only functional markings on the dial. When authenticated, these unmarked dials make for some of the most sought after examples of the Type 20.

Caseback of the above 1955 Breguet, Type 20, ref. 5101/54 showing the engravings made in accordance to its issuance and servicing (Image: Phillips Watches)
Caseback of the above 1955 Breguet, Type 20, ref. 5101/54 showing the engravings made in accordance to its issuance and servicing (Image: Phillips Watches)

Specifications for a Type 20 included an instantaneous flyback function, reliable stop-start function for at least 300 operations, variation of no more than 8 seconds over 24 hours and a power reserve of 35 hours. From there onward, the variants were numerous.

Unlike the Dirty Dozen, which differed only in minor details but were otherwise functionally and visually interchangeable, Type 20s were issued with two or three sub-dials, assorted rotating bezels including engraved, painted and unmarked fluted or reeded types, differing hand shapes, a multitude of crown sizes or shapes and other distinguishing features. And that’s just the Breguets.

Along with Breguet, the other Type 20 manufacturers consisted of Airain, Auricoste, Dodane, Mathey Tissot, Seliva Chronofixe and Vixa. Allegedly, another company – Bouiller – was licensed as well, but this is unconfirmed.

Of the seven, Breguet, Auricoste, Dodane and Mathey Tissot still exist, and the first three of that quartet offer modern versions of the Type 20 or 21, with varying degrees of resemblance to the originals.

Read more about the history of the Type 20, here.

Interested Buyers

A Breguet Type XX Ref:5101/54 with a sterile degradé brown tropical dial offered by Phillips Watches in 2019; sold for CHF27,500; according to Breguet this instance was delivered the French Airforce in June 1955 (Image: phillipswatches.com)
A Breguet Type XX Ref:5101/54 with a sterile degradé brown tropical dial offered by Phillips Watches in 2019; sold for CHF27,500; according to Breguet this instance was delivered the French Airforce in June 1955 (Image: phillipswatches.com)

Focusing in on what is accepted as the original look of the type 20 — branding of devoid, bi-compax flyback chronograph, onion crown, prominent round punishers and fluted bezel — they aren’t all that many options presently available to buy.

If you’re in the market for a vintage Type 20, or specifically a military issued Breguet Type XX, you are looking to play in the big kids’ sandbox. The last better known instance of one was sold with Phillips Watches, at their May 2019 Geneva Watch Auction: NINE. This example that had all of the desirables, with the added sex-appeal of a very attractively aged tropical dial,  went for CHF27,500. The watch was also backed by Breguet’s archives for autheticity.

Those looking for the reliability of a more recently produced watch from Breguet that bears all of these early hallmarks, you’re out of luck. Because that would’ve been the watch that Breguet made for Only Watch in 2019. A universally lauded one-off piece, which secured CHF210,000 for the charity auction.

Breguet’s unique creation for the Only Watch 2019 which sold for CHF210,000 (Image: Only Watch)
Breguet’s unique creation for the Only Watch 2019 which sold for CHF210,000 (Image: Only Watch)

Now, with all of that said: What if we were to tell you that there is actually a modern day option that is aesthetically true to the original and at a price point that’s about to have you picking your jaw up from the floor. This is the Undone Type 20 Classic.

The Undone Type 20 Classic Flyback Chronograph
The Undone Type 20 Classic Flyback Chronograph
The Undone Type 20 Classic Flyback Chronograph
The Undone Type 20 Classic Flyback Chronograph

Fluted rotating bezel with single marker? Check. Onion crown? Check. Round pushers for the flyback chronograph? Check. Large bi-compax sub dial layout? Check. Large lumimous Arabic numerals? Check. Unmarked dial? Double check.

It has all of the necessary and desirable hallmarks. But where’s the catch? And who is Undone?  Undone is a Hong Kong based watch company founded by Michael Young in 2014. Young initiated his first offering in 2016, via Kickstarter with his Urban Vintage collection. Starting at USD175, with a digital customisation tool in place from the get go, not to mention the quarter million US dollars raised (HKD1,960,430), Young clearly had something on hand that a brand could be built around.

Today, Undone stands as a watch company with four collections under its belt, a high level of approval from the tool watch collector community and several notable collaboration watches –including one with our friends from Fratello Watches.

The Undone Type 20 Classic Flyback Chronograph

The catch for a Type 20 that’s this good looking and costs under USD300 is simply this: that it’s powered by a mecha-quartz movement. Specifically the Seiko Instruments Inc. VK64 Mechanical-Quartz Hybrid Flyback Chronograph. If that bothers you, then that’s that. But for the rest of us, a great watch at an incredibly accessible price.

Technical Specifications

Movement

Seiko Instruments Inc. VK64 Mechanical-Quartz Hybrid Flyback Chronograph

Case

Width: 41.5mm (excl. crown); thickness: 12.5mm (incl. crystal); stainless steel with hardened Domed K1 Crystal; water resistant to 30m

The Undone Type 20 Classic Flyback Chronograph
The Undone Type 20 Classic Flyback Chronograph