Sandsteel Mainspring for Waltham 12s Colonial 1924 No. 2237 - Steel

Sandsteel Mainspring for Waltham 12s Colonial 1924 Movements, Factory No 2237, steel, new in frail envelope. See images for precise mainspring specifications. These were available in a couple of different strengths and those that I can supply are shown in the drop-down list. I likely have several of these so the ones you get may differ slightly from the images. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.