T.J.S. Mainspring for Longines 13L caliber 13.33 movements - steel

Torontos Jewellers Supply mainspring for Longines 13 ligne caliber 13.33 movements, and quite likely others, steel, new in envelope. 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.