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Patek Phillipe

6 April 2022

Patek Philippe: The 1/10th of a Second Monopusher Chronograph

By: Jamie McFadden

Patek Philippe: The 1/10th of a Second Monopusher Chronograph

Demonstrating the skill and expertise of their remarkable watchmakers, Patek Philippe today unveils its first wrist chronograph for tenths-of-a-second short-time measurements with a new, very precise high-performance movement.

Introducing the Patek Philippe Ref. 5470P-001 1/10th of a Second Monopusher Chronograph.

Bringing together a wealth of experience and Patek Philippe’s mechanical achievements, the Ref 5470P-001 demonstrates the Manufacture’s competence and innovative spirit in the field of short-time measurement. A high-frequency movement (5 Hz) incorporates all of the “Patek Philippe Advanced Research” innovations in the field of Silinvar® and has a patented display ensuring fast and accurate 1/10th of a second reading.

Further pushing the boundaries of mechanical horology, Patek Philippe’s engineers relied on the caliber CH 29-535 PS. With a traditional architecture (manually wound, column-wheel control, horizontal wheel clutch), the Manufacture increased its frequency from 4 to 5Hz (36,000 semi-oscillations per hour for 10 jumps per second), allowing the measurement of tenths of a second.

As a single sweep seconds hand would not be sufficient to display tenths of a second with an optimal legibility on the dial, the designers resolved to provide the movement with two independent and perfectly synchronised chronograph mechanisms, each driving a different central hand. The hand that performs a complete revolution per minute shows the stopped seconds in the traditional manner. The other hand, in red lacquered Silinvar®, performs one revolution per 12 seconds. Despite the high speed of rotation, this tenth-of-a-second hand moves fluidly without jumps or vibrations.

To handle the three challenges – efficiency, reliability, and rate accuracy – Patek Philippe, for the first time in its current collection, used its Oscillomax® ensemble that had been developed by the “Patek Philippe Advanced Research” department. This high-tech regulator mechanism has three innovative components that rely on all advantages of the Silinvar® technology. The material is based on a derivative of silicon with extraordinary physical and mechanical characteristics. It is lightweight, rugged and antimagnetic.

The remarkable technology powering the Patek Philippe Ref. 5470P-001 1/10th of a Second Monopusher Chronograph is beautifully displayed within a 41mm platinum case with blue varnished dial and gold applied Breguet numerals.

You can learn more about the Patek Philippe collection by contacting your local showroom today. At the DMR Journal you can read more about the collection released by the Manufacture this year at Watches and Wonders.


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