{"product_id":"marco-mainspring-493d-for-hamilton-16-model-992b-950b-no-35434-alloy","title":"Marco Mainspring #493D for Hamilton 16 Model 992B, 950B No. 35434 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eMarco \u003c\/strong\u003eMainspring No. 493D for Hamilton 16s Model 992B, 950B RR movements and likely others as well. Factory No. 35434 (534B), alloy, new in icky envelope. The D is for Dynavar so this is a factory mainspring repackaged by Marshall. See images for further details. I specialize is hard to find watch parts 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":49045019951412,"sku":"PMA-CEM0493D-02","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-02-1719.37.26.jpg?v=1771386054","url":"https:\/\/www.vintagetimeparts.com\/products\/marco-mainspring-493d-for-hamilton-16-model-992b-950b-no-35434-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}