{"product_id":"pm-merelloy-mainspring-243-for-8-0s-hamilton-no-7221-alloy","title":"PM Merelloy Mainspring #243 for 8\/0s Hamilton No. 7221 - Alloy","description":"\u003cp\u003e\u003cstrong\u003ePM\u003c\/strong\u003e Merelloy Mainspring #243 for 8\/0s \u003cstrong\u003eHamilton\u003c\/strong\u003e, Factory No. 7221, 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 and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.\u003cbr\u003e\u003c\/p\u003e","brand":"PM","offers":[{"title":"Default Title","offer_id":49321657729332,"sku":"PMA-PMS0243A-10","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-10-0712.43.07.jpg?v=1791402358","url":"https:\/\/www.vintagetimeparts.com\/products\/pm-merelloy-mainspring-243-for-8-0s-hamilton-no-7221-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}