Ultra-thin, complicated functions: Two Audemars Piguet expertise is perfect in the Royal Oak RD # 2 watch. The new ultra-thin Calibre 5133 movement has a perpetual calendar function, and the development process took five years. The challenge of Calibre 5133 movement is to innovate the traditional 3-layer movement into a single-layer structure, realize ultra-thin design, restructure the structure and functions of the movement to improve space utilization, movement efficiency and stability. This patented movement uses a central rotor and is only 2.89 mm thick, setting a record for today’s self-winding perpetual calendar movement. The newly designed case is only 6.30 mm thick, which is nearly 2 mm thinner than the Royal Oak automatic self-winding ultra-thin Jumbo watch, making the Royal Oak series RD # 2 the thinnest self-winding perpetual calendar watch today. This is the latest chapter in many world firsts that Audemars Piguet has made in the past century.
Audemars Piguet Royal Oak Super Slim Perpetual Calendar
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