Sometimes the oldest inventions can still inspire the 21st century. This is particularly the case of the phonograph, invented by Thomas Edison in 1877. This is what the engineers at Patek Philippe “Advanced Research” were inspired to imagine a new striking watch incorporating a unique sound amplification system. fully mechanical. Here, as on a phonograph, a flexible pivoting lever and a transparent sapphire vibrating plate make it possible to obtain sound propagation and a sound volume significantly greater than that of a traditional minute repeater, in the small volume of a case. wristwatch.
To make the link between the gongs of the minute repeater and the vibrating plate, the engineers here designed a steel lever system on which the sapphire plate is fixed in its center.
This lever, whose shape evokes a tuning fork, is mounted on a "suspension" consisting of a flexible pivot 0.08 mm thick.
When…
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