Steel Mainspring for 18s ELBICO Pocket Watch - Steel

Steel Mainspring for 18s ELBICO Pocket Watch movements, Tongue end, new in envelope. Measures Dennison 19 x 2 and is supposedly suitable for all 18s ELBICO watches imported from Switzerland and sold by Levy Brothers Co Ltd of Hamilton, Ontario, Canada. Mainsprings come from a jeweler in Canada which makes sense since these Pocket Watches were common in Canada RR service. See images for further details. I would presume this will fit other Swiss 18s movements made by Gallet and perhaps others. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.