During the Second World War, the British Ministry of Defence commissioned twelve Swiss manufacturers to produce robust wristwatches to a common military specification. These watches became known to collectors as the "Dirty Dozen" and are regarded as some of the most historically significant military timepieces ever produced.

The specification demanded a highly legible black dial with luminous hands and Arabic numerals, a manually wound movement, shatter-resistant crystal, subsidiary seconds, and a durable case suitable for front-line service. Each watch also carried the military W.W.W. (Watch, Wrist, Waterproof) designation together with the British broad arrow mark, signifying government property.

Büren was one of only twelve companies selected to fulfil this prestigious contract. Their watches were built around reliable in-house manual movements and were intended purely as military instruments rather than luxury timepieces.

Today, the Dirty Dozen represents one of the most collectable fields of military horology. Completing a full set of all twelve manufacturers remains one of the hobby's greatest collecting challenges, while individual examples continue to be prized for their authenticity, historical importance and unmistakable wartime character.

What's on Offer

Offered here is an original Büren WWW Dirty Dozen dating to approximately 1945, complete with the correct military caseback markings including the British broad arrow and H9209 reference.

Its honest appearance immediately sets it apart. The chrome-topped case displays decades of genuine military wear, while the beautifully aged black dial has developed the character collectors actively seek. The warm cream Arabic numerals, original luminous cathedral hands and subsidiary seconds register remain wonderfully legible, creating exactly the utilitarian aesthetic that defines the Dirty Dozen series.

Inside beats the reliable Büren Calibre 462, a 15-jewel manually wound movement designed for dependable service under demanding conditions. Built as a precision military instrument rather than a civilian luxury watch, it perfectly reflects the purpose-driven engineering of wartime Switzerland.

Fitted to a green NATO-style strap, the watch retains the rugged military appearance it was designed to project while remaining comfortable for modern daily wear. At 36.5mm, it also wears remarkably well by contemporary standards, making it an ideal size for collectors who appreciate vintage military watches that still feel practical on the wrist.

This is not a restored example. It is an honest survivor whose scratches, worn chrome and patinated dial tell the story of nearly eighty years of history—exactly the qualities many military collectors value most.

The chrome-topped case displays honest wear, surface scratching and areas where the underlying brass has become visible through years of use, all consistent with an authentic military service watch. The caseback retains the original military engravings, including the broad arrow and W.W.W. markings.

The black dial remains original with attractive vintage patina, clear gilt printing and well-preserved Arabic numerals. The luminous hands retain aged lume appropriate to the period. The plexiglass crystal shows scratches and marks consistent with age but remains perfectly usable.