Newall Unbreakable Mainspring 1795N for Unitas caliber 198, 199 - Alloy

Newall N-Dur-All Mainspring 1795N for Unitas caliber 198, 199 movements plus perhaps other similar ébauche movements as well, alloy, 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.