NEWALL Mainspring #335N for Wittnauer caliber 77, 10TN, 11TN - Alloy

Newall alloy mainspring #335N for Wittnauer caliber 77, 10TN, 11TN and perhaps other similar movements, typical Longines/Wittnauer T-end, new in envelope. See images for precise mainspring specifications. I specialize in hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.