I bought a group of 6 parts watches recently, all Swiss manual winds to play around with, with hopes to repair or to least to get running. Here is a Croton 17 jewel, movement is marked AJRN A4730. This one needed a crown and case back missing, also is filthy, but will run and does keep reasonable time. Any thoughts or opinions here?

Dial pic.

nice one old crotons are good watches.

Been carrying an old Croton pocket watch several days a week for 7 or 8 years now.

Nice watch, scratched glass crystal, heavy nickel plating on the case, porcelain dial, bold blue hands & BM dial.

Keeps good time, easily slides in and out of my jeans watch pocket, but needs COA every two or three years because I carry it in dusty and dirty conditions.