Landeron friction spring for chronograph runner 51 55 82 151 152 153 155 180 181 / part 8290

Landeron 51 friction spring for chronograph runner + screw / Part 8290

Ressort friction du mobile de chronographe + vis

It fits all following calibers :

51 55 82 151 152 153 155 180 181

Pre-owned / Pre-used