Vertex Matching Numbers Dirty Dozen WWW WW2 sold or other such

or other such

Crystal an replacement

W referred to as Wrist Watch Waterproof

Especially the lugs

the majority of Royal Navy Lemania Chronographs had this struck out and their NATO Stock Number engraved above

Vertex Matching Numbers Dirty Dozen WWW WW2 sold or other suchThe Watch . W. W. W referred to as Wrist Watch Waterproof. . In WW2, under increasing pressure from the Germans, the MoD needed to kit out their Troops with a Wristwatch that would stand the harsh realities of War. . The MoD put out specifications for this Wristwatch, that many Swiss Companies answered, the MoD whittled this down to 12 Companies hence the term "Dirty Dozen". These needed to be accurate, reliable and durable, which in watchmaking terms