The Grönefeld family has a watchmaking history spanning over more than a century, the foundations of which were established in 1912 by Johan Grönefeld. This legacy is now managed by the third generation horological brothers Bart and Tim Grönefeld. They made it their mission to build elegant timepieces with surprising mechanisms that belong to the best in the world.

Sincere Fine Watches

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Named after the year their father Sjef was born, the 1941 case exudes grace from every angle. The 1941 Principia Automatic is fitted with a 22-karat solid red gold monobloc rotor. The oscillating weight is extensively decorated by hand and turns on a ceramic ball bearing.

Sincere Fine Watches


Grönefeld uses the most time-honoured techniques during the creation of its revered timepieces. “We don’t go for easy solutions, but embrace technical challenges to ultimately deliver the best solutions. We want our watches to be complex yet reliable and we design them accordingly.”

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