Observatoire Chronométrique+ Certified Chronometer


The more comprehensive Chronometer Certification

Observatoire Chronométrique+

Every individual Venturist is tested in Geneva for 21 days in order to receive the ‘Observatoire Chronométrique+’ certificate, a guarantee issued by independent Swiss horology laboratory TIMELAB. The Chronometric+ Observatory certification certifies that a watch complies with the requirements drawn up by the laboratory and authorises it to bear the prestigious and official title of “chronometer watch” in accordance with the internationally recognised ISO/CEI 3159 standard. The guarantee covers the finished watch and extends to other aspects relating to its reliability such as water resistance (ISO 22810), magnetic resistance (ISO 764), power reserve and performance on the wrist, in conditions representative of modern life.

Discover the tests and criteria

TIMELAB Observatoire Chronométrique+ Certification


The magnetic resistance test is performed by applying a magnetic field to the watch in 3 different positions. After applying the magnetic field the accuracy is measured to…


During the chronometer test each watch head is individually tested for 16 consecutive days, in 5 different positions, at 3 different temperatures (8°C, 23°C and 38°C)…

Water Resistance

To ensure a watch is water resistant according to the ISO 22810 standard each watch has to withstand 3 different tests. During the ‘air overpressure test’ the watch…

Power Reserve

To test the power reserve, the watch is fully wound and placed into a device that is specifically designed to measure the power reserve of mechanical watch movements…

Hitting the sweet spot

A genuine tool watch

With its certified chronometric precision, certified anti-magnetic properties and highly legible dial, the Venturist is a sturdy yet refined tool watch for those who dare to venture.

Ideal for everyday use or under rugged conditions, the Venturist’s case is made of high quality 316L stainless steel, measures 41 mm in diameter, the sweet spot of case sizes, and sits only 10,5 mm high.

The legibility of the dial, as seen through a scratch-resistant sapphire crystal, is excellent in both day and night, with Super-LumiNova pigment on all hands and hand-applied hour markers.

Under the hood

Rear view

The Venturist is powered by Lebois & Co’s automatic caliber LC-201 (Sellita based) with 28,800 vph and a power reserve of 38 hours. The movement, which is visible through a clear caseback, is adjusted in 5 positions and is decorated with Geneva stripes (Côtes de Genève), perlage, diamond cutting and blued screws.

The Venturist is Observatoire Chronométrique+ certified on chronometry, ‘on-the-wrist’ performance, water-resistance, anti-magnetism and power reserve.

Watch + 25 Share certificates

Venturist Shareholder Package

For a limited time, Lebois & Co offers the Venturist in a shareholder package along with shares of the company (25 share certificates, representing an investment of € 1,000).

Venturist timepieces that are bought in the shareholder package will be manufactured in a first batch and have a unique shareholder hallmark on the case back. This special hallmark will be present only on the watches that are bought with the initial shareholder package.

Meet René Peeters: Venturist owner and investor in Lebois & Co

Where there’s adventure, that’s where I want to be

Seeing René Peeters in his business suit, you may not expect someone who is drawn to extreme situations. Think lonely, snowy mountain peaks thousands of meters high. Where survival comes down to skills, common sense and the quality of your gear.

It’s 5 in the morning, the altitude is 3000 meters, the sun rises over the icy peeks. You drink your tea at minus 30 degrees Celsius, while the sunlight warms your face. Around you: just the mountains, complete silence and utter solitude. It’s moments like these…


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Exemption from AFM prospectus and permit requirement

Since the Venturist Shareholder Package contains 25 share certificates (representing an investment of € 1,000) we are obliged to show you the following information:
We do not need a license and a prospectus from the regulator for the AFM (Dutch Financial Markets Authority) to issue the certificates. We have an exemption based on the fact that the total value of the certificates remains below € 5,000,000. The AFM therefore does not supervise our share activities. We are obliged to report this by means of the below AFM banner.

© Venturist images by
© Photos of René by Bart van Vlijmen