{"product_id":"bestfit-mainspring-wa37-for-eta-caliber-1215-1216-automatic-alloy","title":"BESTFIT Mainspring WA37 for ETA 1215, 1216, Eterna 1195, 1198, 1199 Automatic - Alloy","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eBESTFIT \u003c\/strong\u003eMainspring WA37 for ETA 1215, 1216, Eterna 1195, 1198, 1199 caliber automatic movements plus perhaps similar ébauche watches, white alloy, with attached bridle, new in envelope. See images for precise mainspring specifications. 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.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"BESTFIT","offers":[{"title":"Default Title","offer_id":47452009070900,"sku":"PMS-BESTWA37A-09","price":12.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-11-30_16.14.18.jpg?v=1764548161","url":"https:\/\/www.vintagetimeparts.com\/products\/bestfit-mainspring-wa37-for-eta-caliber-1215-1216-automatic-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}