{"product_id":"newall-super-secutiry-mainspring-211-for-beguelin-caliber-9-unitas-calber-431-pocket-watch-alloy","title":"Newall SUPER Secutiry Mainspring #211 for Beguelin caliber 9, Unitas calber 431 Pocket Watch - Alloy","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eNEWALL \u003c\/strong\u003eSUPER\u003cstrong\u003e \u003c\/strong\u003e\u003cem\u003eSecurity\u003c\/em\u003e\u003cstrong\u003e \u003c\/strong\u003eMainspring No. 211 \u003cem\u003e\u003c\/em\u003efor 19 ligne Beguelin caliber 9 and 18½ ligne Unitas caliber 431 pocket watch movements, plus perhaps other larger caliber movements as well (e.g. Lavina 103 \u0026amp; variants), Gr Ref. 5644, alloy, new in envelope. \u003cspan style=\"font-size: 14px;\"\u003eSee images for precise mainspring specifications\u003c\/span\u003e. 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\/span\u003e\u003c\/p\u003e","brand":"Newall","offers":[{"title":"Default Title","offer_id":49128441938228,"sku":"PMS-NEW0211A-05","price":12.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-05-1519.16.05.jpg?v=1778897941","url":"https:\/\/www.vintagetimeparts.com\/products\/newall-super-secutiry-mainspring-211-for-beguelin-caliber-9-unitas-calber-431-pocket-watch-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}