Antique Mathey Tissot 800 Silver Pocket Watch w/ Fancy CUPID Case Parts/Repair
The dial says G. Tissot on it. The case is 800 Silver. The back of the case has Cupid on it. 
This is pre owned and not working. It is a weight of 23.4 grams and measures 1 1/4" across. 

Any questions please ask.