1923 Gents Sterling Silver Trench Watch case by Francois Borgel. 
 
This is a lovely watch which for 99 years old is in remarkably good condition. 
 
Hallmarked London 1923 the case is in very good condition, the movement is a 15 Jewel Swiss Movement, and the case is made by Francois Borgel. Borgel was the first to produce watch cases which were both dustproof and to some extent water resistant, he patented his design long before Rolex ! 
 
cosmetically overall this is in great condition and running well