{"product_id":"swartchild-black-shield-jr-mainspring-for-font-120-123-189-michel-115-steel","title":"Swartchild Black Shield Jr Mainspring for Font 120 - 123, 189, A. Michel 115 - Steel","description":"\u003cp\u003e\u003cstrong\u003eSwartchild \u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003cem\u003eBlack Shield Jr\u003c\/em\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e Mainspring for Font caliber 120 - 123, 189 and A. Michel caliber 115 bracelet movements, regular Tongue end, steel, new in envelope. These springs are packed in a smaller envelope for smaller caliber watches, hence the \"Jr\" designation. I likely have several of these so the exact packaging may be different. I specialize in hard to find watch \u0026amp; clock parts and all parts are unconditionally guaranteed. Images do a pretty good job of representing the item\u003c\/p\u003e","brand":"Swartchild","offers":[{"title":"Default Title","offer_id":48876840386868,"sku":"PMS-SW120123S-09","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-08-2816.57.15.jpg?v=1756425780","url":"https:\/\/www.vintagetimeparts.com\/products\/swartchild-black-shield-jr-mainspring-for-font-120-123-189-michel-115-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}