{"product_id":"waltham-18s-mainspring-factory-no-2203-from-s-larose-alloy","title":"Waltham 18s Mainspring Factory No. 2203 from S. LaRose - Alloy","description":"\u003cp\u003e\u003cstrong\u003eS. LaRose \u003c\/strong\u003epackaged (likely Swiss made) Mainspring for \u003cstrong\u003e\u003c\/strong\u003e18s \u003cstrong\u003eWaltham \u003c\/strong\u003emovements, Factory No. 2203, alloy, new in package. See images for precise mainspring specifications. I know it looks like someone wrote 2202 but it's really 2203. 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\/p\u003e","brand":"S. LaRose","offers":[{"title":"Default Title","offer_id":47452835971380,"sku":"PMA-SLRJA702A-07","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-06-19_16.51.25-1.jpg?v=1781913318","url":"https:\/\/www.vintagetimeparts.com\/products\/waltham-18s-mainspring-factory-no-2203-from-s-larose-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}