An interesting and collectable Silver case Zenith Favre-Leuba & Co Trench Watch.

In working order and the watch keeps fairly accurate time.

Unsure of exact age, but probably around 1910 -1915 .   A nice condition watch given it 's age, case  bars which are fixed are in good condition. 

There are  two dents to the back which you can see in the photos.

I have not taken photos of inside / the movement but can do so if required. 

The case back does not open, the watch has a screw on bezel and the movement is accessed through the from of the watch.

Case diameter excluding the crown 35mm

Email any question and I will try to assist.