Breguet Type XXI Steel — Ruthenium Flyback Chronograph | Ref. 3810ST/92/SZ9

The Type XXI traces a direct lineage to the Aéronavale chronographs Breguet supplied to the French Air Force from the 1950s onward, instruments designed to withstand the specific rigours of military aviation where split-second accuracy is not a preference but a matter of survival. The 3810 in stainless steel preserves the essential character of that heritage — a substantial 42.5 mm case of 15.4 mm depth, purposeful proportions that communicate function before beauty — while applying the finish quality and movement sophistication appropriate to a twenty-first-century interpretation of a living legend. The solid caseback, unlike the exhibition backs favoured by many contemporaries, reflects the original instrument's priority of robustness over display.

The flyback chronograph complication is what separates this reference from a conventional sports watch. Rather than requiring the wearer to stop, reset, and restart the chronograph between successive measurements, a single push of the lower pusher resets and immediately restarts the elapsed-time function — a capability developed specifically for timing consecutive navigation stages without interruption. The ruthenium dial, with its cool, dark grey surface, provides the ideal backdrop for luminous hands and Arabic numeral hour markers whose legibility under reduced light conditions reflects the watch's aviation origins. The automatic movement provides approximately 48 hours of power reserve.

The integrated stainless steel bracelet — each link alternating between brushed and polished surfaces — grounds the watch as a tool destined for regular use rather than occasional display. Water resistance to 100 metres extends its versatility beyond the cockpit. At $11,280, the ref. 3810ST/92/SZ9 is among the most historically resonant watches available at this price point — a Type XXI that connects its wearer to Breguet's aerospace legacy and to the Aéronavale pilots who trusted this same mechanism with their lives.