{"id":34888,"date":"2019-06-06T06:00:56","date_gmt":"2019-06-06T13:00:56","guid":{"rendered":"https:\/\/www.bobswatches.com\/rolex-blog\/?p=34888"},"modified":"2019-11-06T15:15:25","modified_gmt":"2019-11-06T23:15:25","slug":"aegler-became-rolex-movement-maker","status":"publish","type":"post","link":"https:\/\/www.bobswatches.com\/rolex-blog\/resources\/aegler-became-rolex-movement-maker.html","title":{"rendered":"How Aegler Became Rolex\u2019s In-House Movement Maker"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">It may come as a surprise to some, but it was only in 2004 when Rolex outright purchased the movement manufacturing facility that makes the calibers for <a href=\"https:\/\/www.bobswatches.com\/rolex\/\">Rolex watches<\/a>. Prior to that, the company that manufactured movements for Rolex was, in fact, a separate entity owned by the Borer\/Aegler family. From Aegler to Rolex Bienne to finally, a subsidiary of Rolex, discover the history of Rolex\u2019s movement production. <\/span><\/p>\n<figure id=\"attachment_5083\" aria-describedby=\"caption-attachment-5083\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5083 size-full\" title=\"Rolex caliber 1570 movement\" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/06\/Movement-Vintage-Red-Sub-1680.jpg\" alt=\"Aegler\" width=\"1000\" height=\"596\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/06\/Movement-Vintage-Red-Sub-1680.jpg 1000w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/06\/Movement-Vintage-Red-Sub-1680-300x179.jpg 300w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-5083\" class=\"wp-caption-text\">The caliber 1570 movement inside a vintage Rolex Submariner ref. 1680.<\/figcaption><\/figure>\n<h2><b>The Early Rolex Years, Hans Wilsdorf and Aegler <\/b><\/h2>\n<p><span style=\"font-weight: 400;\">When Hans Wilsdorf established his watch company in London in 1905, he was in need of a supplier who could make miniaturized movements for wristwatches. Remember, this was an era where large movements for big pocket watches were the standard.<\/span><\/p>\n<figure id=\"attachment_20006\" aria-describedby=\"caption-attachment-20006\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-20006 size-full\" title=\"Vintage Rolex Perpetual Movement\" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2018\/02\/vintage-rolex-bubble-back-movement.jpg\" alt=\"Aeger\" width=\"1000\" height=\"609\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2018\/02\/vintage-rolex-bubble-back-movement.jpg 1000w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2018\/02\/vintage-rolex-bubble-back-movement-300x183.jpg 300w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2018\/02\/vintage-rolex-bubble-back-movement-768x468.jpg 768w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2018\/02\/vintage-rolex-bubble-back-movement-585x356.jpg 585w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-20006\" class=\"wp-caption-text\">Older Rolex movements are often less decorated and more utilitarian in appearance than their modern counterparts.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Consequently, he turned to the Aegler family movement makers based in Biel\/Bienne (Biel is the German name for the city and Bienne is the French name), who specialized in small mechanical movements. Hermann and Hans Aegler were at the helm of the movement manufacture, having taken over from their mother (who took over after her husband, Jean Aegler died in 1891). <\/span><\/p>\n<p><span style=\"font-weight: 400;\">If we look at the first Swiss Certificate of Chronometric Precision awarded to a Rolex watch in 1910, we see that the name on the certificate is actually \u201cLes Fils de Jean Aegler\u201d &#8211; French for \u201cThe Sons of Jean Aegler.\u201d The movement maker was renamed and registered as Aegler S.A. in 1913.<\/span><\/p>\n<figure id=\"attachment_4997\" aria-describedby=\"caption-attachment-4997\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4997 size-full\" title=\"Rolex Daytona Valjoux-based movement \" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/06\/Movement-Rolex-Chronograph-6234.jpg\" alt=\"Aegler\" width=\"1000\" height=\"667\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/06\/Movement-Rolex-Chronograph-6234.jpg 1000w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/06\/Movement-Rolex-Chronograph-6234-300x200.jpg 300w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-4997\" class=\"wp-caption-text\">Older Rolex chronograph movements were often based on Valjoux or Zenith calibers.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">From the start, the relationship between Aegler and Rolex was strongly intertwined. After Rolex\u2019s operations moved from London to Geneva in 1919, Hermann Aegler became a Rolex board member when he bought a large share of Rolex stock in the 1920s (only to sell it back to Rolex later). <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hermann Aegler\u2019s nephew, Emile Borer became technical director of the family business in the early 1930s. Aegler S.A. was renamed Manufacture des Montres Rolex SA<\/span><i><span style=\"font-weight: 400;\"> (<\/span><\/i><span style=\"font-weight: 400;\">but still wholly owned by the Aegler\/Borer family)<\/span> <span style=\"font-weight: 400;\">in the mid-1930s, with an agreement to be Rolex\u2019s exclusive movement supplier. The few exceptions to this agreement were the Valjoux-based and the Zenith El-Primero-based chronograph movements (fitted in the Rolex Daytona) that came later. <\/span><\/p>\n<figure id=\"attachment_5135\" aria-describedby=\"caption-attachment-5135\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5135 size-full\" title=\"Rolex caliber 1575 movement\" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/06\/movement-vintage-datejust-reference-1500.jpg\" alt=\"Aegler\" width=\"1000\" height=\"667\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/06\/movement-vintage-datejust-reference-1500.jpg 1000w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/06\/movement-vintage-datejust-reference-1500-300x200.jpg 300w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-5135\" class=\"wp-caption-text\">The caliber 1570 movement inside a vintage Rolex Date ref. 1500<\/figcaption><\/figure>\n<h2><b>Rolex Bienne and Rolex Gen\u00e8ve<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The Aegler\/Borer-owned movement making facility was almost always referred to as Rolex Bienne, and to the vast majority of outsiders, it simply looked like a subsidiary of Rolex Gen\u00e8ve. However, in truth they were indeed two separate entities, albeit entirely inseparable. <\/span><\/p>\n<figure id=\"attachment_4628\" aria-describedby=\"caption-attachment-4628\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4628 size-full\" title=\"Rolex caliber 1555 movement\" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/04\/movement-of-vintage-rolex-president.jpg\" alt=\"Aegler\" width=\"1000\" height=\"667\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/04\/movement-of-vintage-rolex-president.jpg 1000w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/04\/movement-of-vintage-rolex-president-300x200.jpg 300w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-4628\" class=\"wp-caption-text\">The caliber 1555 movement inside a vintage Rolex Day-Date President ref. 1803.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Under the leadership of Patrick Heiniger, Rolex Gen\u00e8ve purchased Rolex Bienne from the Borer family in 2004 for a reported CHF 1 billion. This was about the same time that Rolex was snapping up other suppliers like dial manufacturer Beyeler, winding crown maker Boninchi, and bracelet producer Gay Fr\u00e8res. The acquisition of the movement facility was an important step for Rolex SA\u2019s strategy to become a completely vertically integrated watch manufacturer.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In 2009, Rolex began work on expanding its site in Bienne; and in 2012, Rolex unveiled its new its new state-of-the-art movement production building. And now, the Crown can truly say that all of their watch movements are entirely designed and produced <\/span><i><span style=\"font-weight: 400;\">in-house<\/span><\/i><span style=\"font-weight: 400;\">.<\/span><\/p>\n<figure id=\"attachment_4792\" aria-describedby=\"caption-attachment-4792\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4792 size-full\" title=\"Rolex caliber 1520 movement\" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/05\/movement-rolex-submariner-5513.jpg\" alt=\"Aegler\" width=\"1000\" height=\"667\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/05\/movement-rolex-submariner-5513.jpg 1000w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2014\/05\/movement-rolex-submariner-5513-300x200.jpg 300w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-4792\" class=\"wp-caption-text\">The caliber 1520 movement inside a Rolex Submariner ref. 5513.<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>It may come as a surprise to some, but it was only in 2004 when Rolex outright purchased the movement [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":5135,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ep_exclude_from_search":false,"footnotes":""},"categories":[1630],"tags":[],"ppma_author":[2286],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How Aegler Became Rolex\u2019s In-House Movement Maker - Bob&#039;s Watches<\/title>\n<meta name=\"description\" content=\"Before 2004, a separate company owned by the Borer\/Aegler family made movements for Rolex watches. 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