Description: Cut from 0.20mm shim steel. Made for the tall Bulle movement and will need to be finished with the silver contact and fibre insulator. 23.0mm tall x 13.0mm wide with 1.0mm diameter rivet holes.
Description: 18 coils of 4mm diameter wire with two half end coils at right angles. These springs compensate for variations in battery voltage and temperature. They’re made from a copper-nickel (C-902) alloy...More Details »
Description: This 0.15mm wire diameter silver plated copper spring has a 4mm end loop and 2mm diameter coils. The spring is fitted to the Bulle with one end attached to the end of the fork arbor and the other...More Details »