This exceptionally rare, stainless steel Ministry of Defence-issued Grana W.W.W. military watch (ref. M18565) is in fantastic vintage condition and has perfect mechanical functionality. It is the rarest of the twelve watch manufacturers who produced W.W.W. watches for the British military during World War II, known collectively as 'The Dirty Dozen'. Out of the 145,000 W.W.Ws produced, it is estimated that only 1000 - 1,500 were from Grana, making it exceptionally sought after, especially for collectors seeking to own all twelve W.W.Ws. It has recently been fully serviced, ensuring the watch is in perfect mechanical working order. This Grana W.W.W. is from circa 1945 and retains all of its military case-back engravings. The dial features the British military broad arrow, as well as Arabic numerals, a painted minute track and applied Radium index markers. The luminescent material on the hands has aged to a dark orange/brown patina as have the index markers.