Price is for one mainspring. I do not know the exact age of these mainsprings. Height x Thickness x Length.
Pocket & Wrist Watch Mainspring Vintage British Made No End Various Sizes
Fama Flex Ref. 3036 Unbreakable Mainspring Famaflex Wrist & Pocket Watch - CM31
50x Watch Mainspring Assortment Set of Mechanical Springs Watches Mainsprings
18s 20 Ligne Bristol Watch Co. pocket watch enamel dial, Movement & Bridge Plate
Vintage International Watch Co Schaffhausen Pocket Watch 45.8mm Dial
Breguet Hands - Black - Long - Vintage - Watch - Pocket Watch (JC977)
