Since 2009 and the introduction of the Carl F Bucherer Calibre A1000, peripheral rotors are getting more and more in vogue. With this smart and stylish solution, the winding mass is an annular segment mounted and swinging around the movement, instead of a centrally mounted oscillating weight rotating over it. This offers an unobstructed view of the movement along with providing the convenience of automatic winding. In addition, peripheral rotors allow watchmakers to design thinner self-winding watches, without adding to their thickness with an oscillating weight rotating over the movement.
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Posted In: Bvlgari, Carl F. Bucherer, Cartier, patek philippe, Piaget, Technical Perspective, Ultra-thin