{"product_id":"watch-craft-mainspring-3818w-for-eta-900-eterna-956-phenix-130-alloy","title":"WATCH-CRAFT Mainspring 3818W for Benrus BA, BB, CK, CKSS, Eterna 956, Phenix 130, 132, 135, Helbros 660 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eWATCH-CRAFT \u003c\/strong\u003eMainspring 3818W for Benrus BA, BB, CK, CKSS, 6\/0s Central, 7¼ ligne Central, Eterna 956, 966, 967, 968, 969, 970, 1020, Phenix 130, 132, 135, Helbros 660 caliber movements, plus many similar \u003cspan style=\"font-size: 14px;\"\u003eébauche\u003c\/span\u003e movements, white alloy, 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.\u003c\/p\u003e","brand":"C \u0026 E Marshall","offers":[{"title":"Default Title","offer_id":49347694395700,"sku":"PMS-CEM3818WA-10","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-10-2610.47.55.jpg?v=1793037451","url":"https:\/\/www.vintagetimeparts.com\/products\/watch-craft-mainspring-3818w-for-eta-900-eterna-956-phenix-130-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}