Sandsteel Mainspring for Waltham 4 Ligne Model 400 #2240 - Steel

Sandsteel Mainspring for Waltham 4 Ligne Baguette Model 400 Movements, Factory No. 2240, steel, new in envelope. See image for specifications and further details. These came in several different strengths and those that I can supply are shown in the drop-down list. 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.