Wyler Genuine Mainspring for Model E1220 / ETA caliber 1220 - Alloy

Wyler Genuine Material Mainspring for Model E1220 which is an ETA caliber 1220, new in envelope. See images for further details. While it says Genuine Wyler Material, Wyler didn't really make anything - they sourced movements & parts from various Swiss makers, but they did package their parts to sell to fix those movements. 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 an adequate job of representing the item.