BESTFIT Mainspring for Hebdomas 8-day Pocket Watch H280-1

Bestfit System #77 Mainspring for Hebdomas 8-Day Pocket Watches, HOLE end, No. H280-1, steel, new in envelope. See images for precise mainspring specifications. I find these very very infrequently so grab them when you can. I specialize is hard to find watch & clock parts and all parts are unconditionally guaranteed. Images do a pretty good job of representing the item