Rolex tech: The ‘Syloxi’ for calibre 2236 watch movements

One reason Rolex is among the top brands of luxury watches is its continuous dedication to the research and development of new technology to improve the quality of its already state-of-the-art timepieces.

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Recently, Rolex introduced a technology it has been working on for a decade, the "Syloxi", a silicon hairspring. It was only now that the company has decided to incorporate such technology to some of its watches, particularly its ladies watches. The Syloxi technology will not replace the Parachrom hairspring but will work side by side with it. The Parachrom is an exotic alloy of metals introduced by Rolex in the year 2000, which was developed to improve accuracy by removing the effects of magnetism and shock.

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The Syloxi technologydebuted at the Baselworld 2014, and it boasts elegance, beauty, and accuracy as it provides precise movement to precious stone-laden women’s watches such as the new Datejust Pearlmaster 34.

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The Datejust Pearlmaster 34 will have the calibre 2236 automatic movement, the only compatible automatic movement with Syloxi at the moment. But since it is incorporated with the 2236, speculations arise that Rolex will use Syloxi in future timepieces.


Silicon has been known to be one of the most valuable elements in watchmaking because of its characteristics. Silicon does not need lubrication, does not react to magnesium, is not affected by temperature, and is one of the most stable elements in the planet. Silicon in itself is great, but Rolex was able to use that element and develop a technology that made it the best hairspring Rolex has to offer.


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