Helvetia

(General Watch Co., Bienne, Switzerland)

Movements

caliber size jewels shockprot. construction features condition
64 13''' 17 Incabloc
A,HSKM,F OK
830 11 1/2''' 17 Incabloc
A,HS,USK,M,F SCD OK

Details

By clicking onto the photos, you can access the detail pages of the movements
 

    Helvetia 64

    Helvetia 830