{"product_id":"bestfit-mainspring-l135-for-elgin-12s-grade-657-lip-r40-alloy","title":"BESTFIT Mainspring L135 for Elgin 12s Grade 657 \u0026 LIP R40 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eBESTFIT\u003c\/strong\u003e No. L135 alloy mainspring for \u003cstrong\u003eElgin\u003c\/strong\u003e 12s Grade 657 \u0026amp; LIP R40, R403 caliber movements, new in dirty envelope. See images for precise mainspring specifications. The Elgin 657 is based on the French made LIP R40 movement and is not a super easy mainspring to find. I likely have several of these so the one you get may differ slightly from the images. I specialize is hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a satisfactory job of representing the item.\u003c\/p\u003e","brand":"BESTFIT","offers":[{"title":"Default Title","offer_id":47452668723508,"sku":"PMS-BESTL135A-01","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/products\/3179133357.jpg?v=1705291897","url":"https:\/\/www.vintagetimeparts.com\/products\/bestfit-mainspring-l135-for-elgin-12s-grade-657-lip-r40-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}