The Audemars Piguet Royal Oak, a watch that redefined luxury sports watches in 1972, is synonymous with innovation and prestige. While the iconic octagonal bezel and integrated bracelet are instantly recognizable, the story behind the movements powering these exceptional timepieces is equally compelling. This article delves into the heart of a specific Royal Oak model, exploring the remarkable Audemars Piguet Royal Oak Automatic Calibre 2121 Extra Thin, a testament to the brand's commitment to horological excellence and its mastery of ultra-thin movements. The journey will take us through the development of the calibre 2121, its relationship with the preceding calibre 2120, and its significance within the broader context of Audemars Piguet's history.
The calibre 2121, a self-winding movement, isn't simply a thinner version of its predecessor; it represents a significant leap forward in ultra-thin automatic watchmaking. Understanding its creation requires looking back at the calibre 2120, its hand-wound counterpart, which laid the groundwork for the automatic masterpiece. The 2120, while not directly powering a Royal Oak, served as the crucial stepping stone. Its development highlights Audemars Piguet's relentless pursuit of miniaturization, a quest that ultimately culminated in the revolutionary calibre 2121.
Before we delve into the specifics of the 2121, it's essential to acknowledge the significant influence of the even thinner hand-wound Calibre 2003, measuring a mere 1.64 mm in thickness. This movement, developed before the 2120, represents a pinnacle of ultra-thin watchmaking technology in its time. The incredible thinness of the 2003 was a significant achievement, showcasing Audemars Piguet's technical prowess and setting the stage for the future development of even more complex and slim movements within the Royal Oak line. While not directly incorporated into the Royal Oak, the knowledge and experience gained from the 2003 were undeniably crucial in the creation of the subsequent calibres. The Audemars Piguet Archives from 1975 provide valuable insights into this crucial period of development, highlighting the collaborative spirit and engineering challenges overcome in creating these exceptionally thin calibres.
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