{"product_id":"hr-merelloy-mainspring-m13-for-hamilton-750-751-tavannes-384-385-386-alloy","title":"PM Merelloy Mainspring M13 for Hamilton grade 750, 751 - Alloy","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003ePM \u003c\/strong\u003eMerelloy\u003cstrong\u003e \u003c\/strong\u003eMainspring M13 for \u003cstrong\u003eHamilton\u003c\/strong\u003e grade 750, 751 bracelet movements perhaps similar ébauche watches, white alloy, new in envelope. See image for precise mainspring specifications. I likely have several of these so the one you get may differ 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\/span\u003e\u003c\/p\u003e","brand":"PM","offers":[{"title":"Default Title","offer_id":49091568402740,"sku":"PMA-PMMEREM13A-04","price":7.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-04-1016.35.18.jpg?v=1775864344","url":"https:\/\/www.vintagetimeparts.com\/products\/hr-merelloy-mainspring-m13-for-hamilton-750-751-tavannes-384-385-386-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}