{"id":24171,"date":"2026-08-22T15:56:48","date_gmt":"2026-08-22T15:56:48","guid":{"rendered":"https:\/\/www.gioielleriasessamario.com\/prodotto\/eberhard-cronografo-bicompax-base-1000-anni-50-acciaio\/"},"modified":"2026-09-24T05:17:02","modified_gmt":"2026-09-24T05:17:02","slug":"eberhard-pre-extra-fort-bicompax-chronograph-in-steel-cal-16000","status":"publish","type":"product","link":"https:\/\/www.gioielleriasessamario.com\/en\/product\/eberhard-pre-extra-fort-bicompax-chronograph-in-steel-cal-16000\/","title":{"rendered":"Eberhard Pre-Extra Fort Bicompax Chronograph in Steel \u2013 Cal. 16000"},"content":{"rendered":"<div>Elegant Eberhard &amp; Co. Pre-Extra Fort model chronograph from 1947-1949.&nbsp;<span style=\"font-size: 1rem\">The combination of the late-1940s serial number, the calibre 1600 (based on the Valjoux 65) and the absence of the Extra Fort signature on the dial confirms that, from both a technical and a collector\u2019s standpoint, this is an Eberhard Pre-Extra Fort.&nbsp;<\/span><\/div>\n<div>The watch features the classic bicompax layout and a silvered dial with Base 1000 tachymeter scale. The steel case, the rectangular chronograph pushers and the strongly domed crystal underline the typical aesthetic of post-war Eberhard chronographs.<\/div>\n<div><\/div>\n<div><\/div>\n<div>\n<ul>\n<li><b>Brand:<\/b> Eberhard &amp; Co.<\/li>\n<li><b>Collection: <\/b>Pre-Extra Fort&nbsp;<\/li>\n<li><b>Period:<\/b>&nbsp;1947-1949<\/li>\n<li><b>Movement:<\/b>&nbsp;Hand-wound mechanical 16-ligne chronograph movement introduced in the late 1930s and derived from the Valjoux 65 base. Column-wheel switching. The chronograph functions are controlled by a refined column wheel, an architecture that ensures smooth and precise chronograph engagement. Slide complication (Eberhard patent): this calibre was designed with a peculiar operation, the pusher at 2 o\u2019clock controls the standard functions, while the lower key at 4 o\u2019clock is not an ordinary pushbutton but a locking slide. Moving it made it possible to lock the time measurement and restart it without resetting the hands, an avant-garde technical solution designed to record intermediate times.<\/li>\n<li><b>Calibre: <\/b>16000<\/li>\n<li><b>Case serial number:<\/b> 1034214<\/li>\n<li><b>Case<\/b>: Stainless steel<\/li>\n<li><b>Case diameter: <\/b>35 mm<\/li>\n<li><b>Dial<\/b>: Silvered, bicompax layout with applied indices, applied Arabic numerals at 12 and 6 and peripheral Base 1000 tachymeter scale<\/li>\n<li><b>Strap:<\/b> Brown leather<\/li>\n<li><b>Buckle: <\/b>Signed<b>&nbsp;<\/b><\/li>\n<li><b>Crown: <\/b>Signed<\/li>\n<li><b>Condition<\/b>: Used&nbsp;<\/li>\n<li><b>Functions<\/b>: Hours, minutes, small seconds, chronograph with central seconds and 30-minute counter<\/li>\n<li><b>Case back<\/b>: Snap-on, in stainless steel, signed Eberhard &amp; Co. and numbered 1034214<\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Elegant Eberhard &amp; Co. Pre-Extra Fort model chronograph from 1947-1949.&nbsp;The combination of the late-1940s serial number, the calibre 1600 (based on the Valjoux 65) and the absence of the Extra Fort signature on the dial confirms that, from both a technical and a collector\u2019s standpoint, this is an Eberhard Pre-Extra Fort.&nbsp; The watch features the [&hellip;]<\/p>\n","protected":false},"featured_media":24172,"template":"","meta":[],"product_brand":[345],"product_cat":[1344],"product_tag":[],"class_list":["post-24171","product","type-product","status-publish","has-post-thumbnail","product_brand-eberhard","product_cat-watches-en","first","instock","featured","taxable","shipping-taxable","purchasable","product-type-simple","add-to-wishlist-before_image"],"_links":{"self":[{"href":"https:\/\/www.gioielleriasessamario.com\/en\/wp-json\/wp\/v2\/product\/24171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gioielleriasessamario.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.gioielleriasessamario.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gioielleriasessamario.com\/en\/wp-json\/wp\/v2\/media\/24172"}],"wp:attachment":[{"href":"https:\/\/www.gioielleriasessamario.com\/en\/wp-json\/wp\/v2\/media?parent=24171"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.gioielleriasessamario.com\/en\/wp-json\/wp\/v2\/product_brand?post=24171"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.gioielleriasessamario.com\/en\/wp-json\/wp\/v2\/product_cat?post=24171"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.gioielleriasessamario.com\/en\/wp-json\/wp\/v2\/product_tag?post=24171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}