Marco Mainspring #216 for 18s Waltham 17j Model 1892 No. 2222 - Steel

Marco Mainspring No. 216 for 18s Waltham Model 1892 Vanguard 17J movements, Factory No. 2222, steel, new in frail envelope. See image 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.