IWC 'Dirty Dozen' a stainless steel British military issue wrist watch 1940S. Dial: black, broad arrow, luminous Arabic numerals, white outer minute track with luminous dot 5 minute markers, subsidiary seconds at 6, pointed baton hands with luminous inserts. Calibre: cal. 83 manual winding, 15 jewels. Case: brushed and polished round, fixed bars, screw down case back engraved with broad arrow W.W.W. M17535. Closure: fabric military style pull through strap, steel buckle. Dimensions: 35 mm diameter. Signed: case, dial and movement. Accessories: none