{"id":59726,"date":"2026-03-12T20:18:14","date_gmt":"2026-03-12T19:18:14","guid":{"rendered":"https:\/\/master-watch-parts.com\/product\/heuer-cal-1666-part-no-8350-herzhebelfeder-hammer-spring-nos-heuer-monte-carlo\/"},"modified":"2026-10-13T14:19:14","modified_gmt":"2026-10-13T12:19:14","slug":"heuer-cal-1666-part-no-8350-herzhebelfeder-hammer-spring-nos-heuer-monte-carlo","status":"publish","type":"product","link":"https:\/\/master-watch-parts.com\/en\/product\/hammer-spring-for-heuer-cal-1666-part-8350-nos-heuer-monte-carlo\/","title":{"rendered":"Hammer Spring for HEUER Cal. 1666, Part 8350 \u2013 NOS \u2013 Heuer Monte Carlo"},"content":{"rendered":"<p><strong>Scope of delivery: 1x HEUER 1666 <a href=\"https:\/\/master-watch-parts.com\/en\/product-category\/watch-movement-spare-parts\/heuer\/\">Part 8350<\/a><\/strong><\/p>\n<p><strong> &#8211; Hammer spring &#8211;<\/strong><\/p>\n<p>In 1958, Heuer launched the <strong>Monte Carlo<\/strong> dashboard stopwatch as the successor to the Autavia stopwatch. In place of the Autavia&#8217;s 12-hour counter, a jumping 12-hour disc was introduced, which was visible through a window in the lower part of the dial.<\/p>\n<p>Initially, an A. Schild 1666 caliber was used; from 1967, a Valjoux 7714 caliber.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Restore professionally with the HEUER 1666 Part 8350 hammer spring. This NOS spare part is a precise fit for Heuer Monte Carlo stopwatches.<\/p>\n","protected":false},"featured_media":59727,"template":"","meta":[],"product_brand":[],"product_cat":[10171],"product_tag":[],"class_list":["post-59726","product","type-product","status-publish","has-post-thumbnail","product_cat-heuer","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product\/59726","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/media\/59727"}],"wp:attachment":[{"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/media?parent=59726"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product_brand?post=59726"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product_cat?post=59726"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product_tag?post=59726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}