Nivaflex Mainspring for Waltham 10s / 12s / 14s Colonial A No. 2234 - Alloy

Nivaflex Mainspring for Waltham 10s / 12s / 14s Colonial A movements, Factory No. 2234, alloy, new in frail envelope. See images for further details. I likely have several of these so the one you get may differ slightly from the images. I specialize is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.