Waltham Factory Mainspring for 18s Model 1859 No. 2200 - Steel

Waltham Factory Mainspring for 18s Model 1859 movements, Factory No. 2200, Single Brace and Hole, steel, in frail envelope. See images for further details. These were available in a couple of different strengths and those that I can supply can be found in the drop-down list. These can be pretty tricky to find. Mainspring has been in the shelf for probably close to 80 years but I inspect all these super old steel mainsprings carefully before I list them, and I unconditionally guarantee them. Images do a pretty good job of representing the item.