This is my first post on this forum, and I'm reaching out for the assistance of the community's expertise. I've embarked on a project restoring an old Tudor Oyster watch from the 1940s, powered by the fascinating Rolex 59 (CS) movement. This undertaking has opened my eyes to the intricate world of vintage Rolex movements, specifically the elusive and highly regarded Cal. 59. My aim with this article is not only to document my experience but also to provide a comprehensive overview of the Rolex Cal. 59, drawing parallels with related movements and offering a deeper understanding of its place within the wider context of Rolex caliber movements.
The Rolex Cal. 59, often seen with the designation “(CS)” appended, represents a significant chapter in Rolex’s horological history. While not as widely known or readily available as some of its more prolific counterparts, its rarity and inherent quality make it a highly prized movement among collectors and enthusiasts. Its presence in a 1940s Tudor Oyster highlights the close relationship between the two brands during this era, with Tudor often utilizing Rolex movements in its timepieces. My own experience of working on this specific movement has underscored the challenges and rewards associated with restoring such a piece of horological history.
The Rolex Cal. 59: Technical Specifications and Distinguishing Features
The Rolex Cal. 59 is a manually wound movement, reflecting the technology of its time. Precise details regarding its production numbers and exact lifespan remain somewhat shrouded in mystery, adding to its allure. However, based on known examples and historical data, we can paint a picture of its key characteristics:
* Jewels: Typically 17 jewels, although variations may exist. The precise arrangement and type of jewels played a vital role in the movement's accuracy and longevity.
* Frequency: The standard frequency is typically 18,000 beats per hour (bph), common for manually wound movements of this period. This frequency contributes to the movement's characteristic smooth sweep of the seconds hand.
* Power Reserve: The power reserve is generally considered to be around 40-48 hours, depending on the condition of the movement and the efficiency of the mainspring.
* Construction: The movement is meticulously constructed, showcasing the high standards of craftsmanship expected from Rolex. The use of high-quality materials and precise machining are evident in its design and execution.
* Escapement: The Cal. 59 utilizes a lever escapement, a traditional and reliable design that has served as the foundation for countless mechanical movements throughout history.
* Regulation: Precise regulation is crucial for accurate timekeeping, and the Cal. 59’s regulation system reflects the meticulous attention to detail that went into its manufacture. This often involved adjusting the balance wheel and hairspring to achieve optimal performance.
Comparing the Rolex Cal. 59 with Related Movements: The Rolex 1565 and Other Calibers
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