Our instruments must deliver accurate g-measurement and time-keeping with flawless accuracy under the toughest conditions: sustained, crushing gees.

Having invented a device which did not exist before, we had also to come up with new tests to simulate the high g-load situations our devices would be

operating in. On top of the traditional tests rough sport watches go through, we subject ours to an additional battery of gruesome, custom-made laboratory tests, to simulate extreme g-loads for extended periods of time.

But ultimately, our devices must prove air-worthy out in the blue yonder.

Our pilots take every instrument up
in the air, where its functions are thoroughly measured, verified, and duly recorded in each unique logbook.

We can think of no better way to guarantee their reliability.


All our devices go through prolonged, high-load tests, both in the lab and in the air.



Our devices are precision instruments.

Every detail of manufacture, testing and service is dutifully registered in the unique Instrument Logbook that accompanies every instrument. This document also includes the user manual, warranty, and certification documents. The logbook provides

consistent traceability, ensuring the device performs in accordance with our rigorous standards. And just like an aircraft, when a De Motu Pilot Instrument leaves the factory the logbook accompanies it for life, faithfully telling its story for the
owner and the watch-maker.

Back to The Movement…On to About g-Forces…