Vintage manual wind Pontiac Palmares (add more to comments below)
The Peseux caliber 320 was produced in Switzerland. This movement can be found with or without shock protection. Other variations also exist depending on when it was manufactured. Do not be surprised if you come across a configuration that is different from what is seen here. If you do, please send a photo to be added to this listing.
The movement pictured above is from a vintage Pontiac watch. According to this page, Pontiac watches were launched in Belgium in 1932:
Alain De Nys fell into the world of timepieces when he was young. This timekeeping enthusiast inherited a passion for watch-making from his mother, who in turn inherited it from her father. In 1932,the grand father of Alain De Nys, Ali Kinsbergen, launched the famous Pontiac brand in Belgium..