Paulson repackaged Hamilton Dynavar 10s Mainspring No. 20434 / 717102 - Alloy

H. Paulson & Co repackaged Hamilton Genuine Factory Dynavar Mainspring for 10s Movements, more specifically the models 917, 921, 923 and 945, Factory No. 20434 (and 717102), alloy, new in envelope. See images for further details. Sometimes it's fun to editorialize a bit and wonder why Paulson needed to take the mainspring out of a Hamilton envelope and put it in theirs? I specialize is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.