{"id":58371,"date":"2023-01-28T22:15:05","date_gmt":"2023-01-28T21:15:05","guid":{"rendered":"https:\/\/master-watch-parts.com\/product\/watch-movement-handwinding-mechanical-sonceboz-es-55-nos-swiss-made-voumard-4\/"},"modified":"2026-10-13T14:19:11","modified_gmt":"2026-10-13T12:19:11","slug":"watch-movement-handwinding-mechanical-sonceboz-es-55-nos-swiss-made-voumard-4","status":"publish","type":"product","link":"https:\/\/master-watch-parts.com\/en\/product\/mechanical-hand-winding-movement-sonceboz-es-55-voumard-nos-4\/","title":{"rendered":"Mechanical Hand-Winding Movement Sonceboz ES 55, Voumard \u2013 NOS #4"},"content":{"rendered":"<h2>Sonceboz ES 55?<br \/>\n(not sure, it could also be ES 54)<\/h2>\n<p>Mechanical Sonceboz ES 55 hand-winding movement, NOS, 17 jewels, 21600 A\/h, approx. 27.0 mm diameter. Hard to find as a replacement movement.<\/p>\n<p><strong>Scope of delivery: 1x Sonceboz ES 55 (ES54)<\/strong><\/p>\n<p>Hand-winding movement<\/p>\n<p>Diameter: approx. 27.0 mm (12&#8220;`)<\/p>\n<p>17 jewels \/ 21600 A\/h \/ from the 70s<\/p>\n<p>Hardly available anymore as a replacement movement<\/p>\n<p>New Old Stock, working well,<\/p>\n<p>Height: 4.9 mm (from bottom to the top of the date dial guard)<\/p>\n<p>Shock-protected \/ quick date adjustment<\/p>\n<p>Pin lever escapement<\/p>\n<p>Almost impossible to find<\/p>\n<p>Comes in the original plastic box<\/p>\n<p>Some useful information from the web (from the ranfft website),<\/p>\n<p>but it has not been checked for correctness:<br \/>\nDm = 26.6 mm, Do = 27.0 mm<br \/>\nF = 0.65 mm<br \/>\nT = 1.9 mm<\/p>\n<p><strong>Do<\/strong> outer diameter, thus the largest. Most movements have a flange a little bigger than Dm,<\/p>\n<p>to rest on the case band or mounting frame.<\/p>\n<p><strong>Dm<\/strong> mounting diameter. With this diameter the movement fits into the aperture of the case or mounting frame<br \/>\n<strong>F<\/strong> mounting height, distance between dial plane* and mounting flange.<\/p>\n<p><strong>T<\/strong> stem height, distance between dial plane* and stem center<\/p>\n<p>*) Movements with display discs on the dial side (e.g., calendar) occasionally have no dial support.<\/p>\n<p>In this case the surface of the discs is taken as reference plane for <strong>H<\/strong>, <strong>F<\/strong>, and <strong>T<\/strong>.<\/p>\n<p>If a dial spacer that is not permanently fixed is supplied with the movement, its additional height is stated.<\/p>\n<p><strong>Hands<\/strong><br \/>\n1.50 x 0.90 x 0.20 mm<\/p>\n<p><strong>Since the movement is almost 50 years old, it must be serviced by a watchmaker before installation<\/strong><\/p>\n<p>Due to the long storage time, small traces may have formed on the movement, but this has no effect on the function.<\/p>\n<p>A fine adjustment might be necessary.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mechanical Sonceboz ES 55 hand-winding movement as an unused NOS spare part. Suitable as a replacement movement with 17 jewels, 21600 A\/h and a diameter of 27.0 mm.<\/p>\n","protected":false},"featured_media":58372,"template":"","meta":[],"product_brand":[],"product_cat":[229],"product_tag":[],"class_list":["post-58371","product","type-product","status-publish","has-post-thumbnail","product_cat-mechanische-werke","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product\/58371","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\/58372"}],"wp:attachment":[{"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/media?parent=58371"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product_brand?post=58371"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product_cat?post=58371"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product_tag?post=58371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}