BESTFIT Mainspring 712K for AS 1045 & 1103 & Buser 130 - Alloy

BESTFIT Mainspring 712K for AS 1045 & 1103, Buser 130, Unitas 180, Lapanouse / Cimier 201 and Moeris 10½ ligne movements plus perhaps similar ébauche watches, white alloy, new in envelope. See images for precise mainspring specification. I likely have several of these so the one you get may differ slightly from the images. 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.