{"product_id":"pm-mainspring-for-eta-caliber-651-bulova-caliber-4at-onyx-steel","title":"PM Mainspring for ETA caliber 651, Bulova caliber 4AT - ONYX Steel","description":"\u003cp\u003e\u003cstrong\u003ePM \u003c\/strong\u003eONYX steel mainspring for ETA caliber 651, Bulova caliber 4AT movements and quite likely others as well, new in envelope. See images for precise mainspring specifications. 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":"PM","offers":[{"title":"Default Title","offer_id":49071462351156,"sku":"PMS-PMS0651S-03","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-03-2516.03.43.jpg?v=1774480061","url":"https:\/\/www.vintagetimeparts.com\/products\/pm-mainspring-for-eta-caliber-651-bulova-caliber-4at-onyx-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}