March 2, 2019

E. Luthy Hairspring counter, watchmakers lathe, approx 85y, dream condition

The tool is in dream condition. This tool is used to determine the length of the Hairspring when exchanging it (for pocket and wrist watches, with a frequency of 18000 an hour). The tool is made of two parts, on the bottom there is a precision balance and a grappler on the top. The motion […]