c.1939 Leonidas  ATP WW2 Official Ordnance Military Gents Watch 
 
The Ministry of Defence only officially ordered 133,000 from various Swiss Manufacturers in 1939, known affectionately as Tommy Watches these predated the famous Dirty Dozen by a number of years and were used in the heaviest fighting in WW2. 
After the war those that hadn't been lost or destroyed the MOD tried to destroy, however not all were and that makes these watches very collectable now. 
This watch is actually in very good condition for its age, its dial has  very little signs of ageing. The case has some plate loss and in some areas down to the brass.
 
The Army Trade Pattern Mark and Pheon (ATP) is clearly engraved on the back.
Inside the case is a 15 Jewel Fontainmelon FHF 186 cal  movement.
 
Cosmetically overall this is in very good condition and running well