{"product_id":"elgin-factory-crown-for-military-issue-elgin-8-0s-grade-539-wrist-watch-1","title":"Elgin Factory Crown for Military Issue Elgin 8\/0s Grade 539 Wrist Watch No. EL-285-2104S","description":"\u003cp\u003e\u003cstrong\u003eElgin\u003c\/strong\u003e Factory Crown for 8\/0s Grade 539 \u003cstrong\u003eElgin \u003c\/strong\u003eMilitary Wrist watch, issue spare part #FO36-7198103, originally packaged in March 1951, new in replacement packaging. The TM9-1575 Ordinance Maintenance Manual confirms this was made for the Model 1783 Grade 539 movement in the case with the screw-on back, which was either 7j or 15j. That said, as near as I can tell these came in a couple of different tap sizes and perhaps even other slight variations (Elgin P\/N's EL-285-2104S and EL-285-2104K), with this being the \"S\" and measuring as a T10. I specialize is hard to find watch parts so I usually have whatever you might need, all watch parts are unconditionally guaranteed and reasonable offers are always welcome. Images do a suitable job of representing the item.\u003cbr\u003e\u003c\/p\u003e","brand":"Elgin","offers":[{"title":"Default Title","offer_id":49168381051188,"sku":"SSW-EL2852104S-06","price":12.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-06-2016.17.47.jpg?v=1781998223","url":"https:\/\/www.vintagetimeparts.com\/products\/elgin-factory-crown-for-military-issue-elgin-8-0s-grade-539-wrist-watch-1","provider":"Vintage Time Parts","version":"1.0","type":"link"}