17 Jewels. 

Working

Caseback is stamped 18K and 0.750

It is also stamped with a women's head denoting the profile of HELVETIA. 

(the female personification of Switzerland)

There is also an HAMMER HEAD stamp with the number 123 inside denoting the Poincon de Maitre or makers mark.

This also denotes it was made in the watchmaking regions of La Chaux-de-Fonds, Le Locle or Biel, in Switzerland.

Returns are accepted but the item must be returned in the condition it was sent

Thank you for looking