Entrepreneur Jan Haudemann-Andersen spotted wearing a Breguet

Photographed outdoors in what appears to be a garden setting, Jan Haudemann-Andersen — the Norwegian entrepreneur and investor known for his sharp eye in private equity — is seen on a phone call with a Breguet Type XX Aéronavale chronograph on his wrist. The watch sits naturally against a white dress shirt cuff, its dark dial immediately legible even in bright sunlight, exactly as its original military brief demanded.
The Breguet Type XX Aéronavale reference 3800ST is one of the marque's most historically grounded pieces. Born from a 1954 contract with the French Aéronavale (naval aviation), the original Type XX was designed to withstand the rigours of carrier-based flight operations. The modern reissue retains the spirit faithfully: a 39mm stainless steel case, rotating bi-directional bezel with 60-minute graduation, and a black dial with large Arabic numerals and luminous sword-shaped hands. The flyback chronograph function — allowing the pilot to reset and restart with a single push — is powered by Breguet's calibre 582, a self-winding movement with column wheel control and a 45-hour power reserve.
Among collectors, the Type XX occupies a distinct niche. It is serious enough to satisfy the tool-watch purist, yet carries the Breguet name and finish quality that elevates it well above purely functional chronographs. The 3800ST references produced through the 2000s are increasingly sought after as Breguet has since evolved the line into the more complex Type XXI and Type 20, making the cleaner original proportions of the 3800 feel both nostalgic and resolved.
Haudemann-Andersen's choice is telling. Entrepreneurs and investors in the Nordic business community have historically favoured watches that communicate substance without ostentation — the Type XX is precisely that instrument. It announces horological literacy without demanding attention.
On the grey market, clean examples of the Breguet Type XX 3800ST have held value steadily, typically trading between $7,500 and $11,000 depending on condition and service history. With the Type XX name now repositioned on higher-price modern references, the original 3800 series represents arguably the best entry point into Breguet's aviation heritage at a rational price.