Nivaflex Unbreakable Mainspring N7145 for Caravelle 11OAC, 11OEC, Elgin 824, 825 (AS/ST 1686) - Alloy

Nivaflex Unbreakable Mainspring N 7145 for Caravelle caliber 11OAC, 110EC, AS/ST 1686 based movements plus perhaps similar ébauche watches (including a plethora of AS calibers), GR Ref. 4502, alloy, new in envelope. This mainsprings fits a huge list of AS/ST 1686 based movements, including (but not limited to) Elgin 823, 824 and Hamilton 653, 657. 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.