{"product_id":"colonial-colloy-mainspring-for-hamilton-16s-317-alloy","title":"Colonial COLLOY Mainspring for Hamilton 16s 317 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eColonial\u003c\/strong\u003e \u003cem\u003eCOLLOY\u003c\/em\u003e Mainspring for 16s \u003cstrong\u003eHamilton\u003c\/strong\u003e, Factory No. 317, alloy, new in envelope. See images for further details. I likely have several of these so the one you get may differ slightly from the images. I specialize in hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.\u003c\/p\u003e","brand":"Colonial","offers":[{"title":"Default Title","offer_id":48434069504308,"sku":"PMA-COL0317A-12","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-12-0912.14.54.jpg?v=1765311609","url":"https:\/\/www.vintagetimeparts.com\/products\/colonial-colloy-mainspring-for-hamilton-16s-317-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}