Pin lever movement with 15 jewels

 
Pin lever movement with 15 jewels

Pin lever movement with 15 jewels

Description

This pin lever movement is also unknown to me. With 15 jewels, center second, “screw” balance and regulator, it is a rather well constructed pin lever movement. It reminds me a bit of the also rather unknown caliber OC 1.

Here, I’m also glad for any kind of informatione regarding this caliber and the caliber OC 1.