{"product_id":"three-elgin-factory-balance-staff-for-21-0s-grade-533-535-5388","title":"Three Elgin Factory Balance Staff for 21\/0s Grade 533, 535 - #5388","description":"\u003cp\u003eThree\u003cstrong\u003e Elgin \u003c\/strong\u003eFactory Balance Staffs for 21\/0s grade 533, 535 movements and perhaps others as well, factory catalog No. 5388, Elgin refill no. 533-264, new in envelope. See images for further details.  From a supply house in Utah so I'm going to presume they are Bestfit. 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 an adequate job of representing the item.\u003c\/p\u003e","brand":"Elgin","offers":[{"title":"Default Title","offer_id":49060078551348,"sku":"SJP-BFEL619LBS-03","price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-03-1015.52.08.jpg?v=1773183503","url":"https:\/\/www.vintagetimeparts.com\/products\/three-elgin-factory-balance-staff-for-21-0s-grade-533-535-5388","provider":"Vintage Time Parts","version":"1.0","type":"link"}