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Mathey-Tissot Type 21 Flyback
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MovementFlyback chronograph, quartz and automatic versions
Diameter42 mm
CaseSatin-finished steel
Water resistance5 bar (50 m)
In the catalog since2018

Type 21 Flyback

The brand's return to its own military aviation heritage

Model History

In the 1950s and 1960s Mathey-Tissot was among the original suppliers of the Type XX, the celebrated aviation chronograph developed for the French armed forces and also produced, under the same military specification, by other manufacturers of the era such as Breguet — for whom Mathey-Tissot made some examples. Those vintage watches, today contested among collectors, remain the most prestigious chapter in the brand's history, valued at even tens of thousands of dollars on the secondhand market.

Since 2018 Mathey-Tissot has chosen to bring that heritage back into a current product with the Type 21 Flyback line, whose name directly recalls the historical Type XX numbering (twenty-one as the twentieth "plus one," a declared tribute rather than an official military designation) and revives its essential setup: a robust aviator case, a highly legible high-contrast dial and, above all, the flyback function, the true technical signature of its forebear.

Unlike the brand's more affordable and generalist catalog, the Type 21 Flyback focuses on an aesthetic more faithful to the original military-pilot language — black, brown or dark green dials, leather straps or steel bracelets — positioning itself as the most accessible entry point into the Type XX's historical story, without the price tag of the high-end heritage reissues from other brands involved in the same military specification.

Technical Specifications

Functions
Hours, minutes, seconds, date, flyback chronograph
Case
42 mm, satin-finished stainless steel
Crystal
Sapphire
Dial
Black, brown or green
Water resistance
5 bar (50 m)
Strap
Leather or 316L steel bracelet
Inspiration
Type XX, French military aviation chronograph, 1950s-60s
Movement
Not uniform across executions: official catalog quartz, some references sold in an automatic version

Main Executions

Type 21 Flyback, black dialSteel bracelet or black leather strapcurrent production
Type 21 Flyback, brown dialBrown leather strap, more vintage aestheticcurrent production
Type 21 Flyback, green dialGreen leather strap, the line's most recent variantcurrent production
Fun Fact

The flyback function — which allows the chronograph to be reset and immediately restarted with a single push, without first having to stop it — was created precisely for military needs: pilots needed to be able to time successive maneuvers in rapid sequence without wasting precious time in the cockpit. It is the same technical reason why the original Type XX, and today its successor the Type 21, remains almost always identified with this complication.