0 active listings
1 sold
179 discussions
The Gronefeld One Hertz is a watch. Explore 0 active listings and 179 collector discussions on WatchProSite.
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SteveH · MINT · ⚠76mo ago
malcolm · MINT · ⚠158mo agoSales History
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Initial Photos of the Gronefeld One Hertz in TI with Blue Dial
Greetings to all! Timely that Don has just posted his excellent review of the Grnefelds' watches from Basel this year, as I have just returned from a very brie
My Gronefeld Adventure (Pictures of One Hertz being made)
I am super excited to be able to share with everyone a few pictures from my adventures in acquiring a Gronefeld One Hertz. First and foremost I have to preface
Gronefeld One Hertz. Sometimes, lunches offer some unexpected meals...
My first encounter with the Gronefeld brothers was in 2011, during our IGOTT in Vegas. We had a lunch, with many other people and friends, and here is watch cam
My view on the Grönefeld One Hertz Techniek
With the One Hertz, the Grönefeld brothers have given a big spotlight on a complication which is very rarely seen in contemporary watchmaking world: the indepen
Grönefeld presents the One Hertz Techniek - the world's first independent dead seconds series wristwatch
Presenting the "One Hertz Techniek" The world's first independent dead seconds series wristwatch – now with a revealing open dial to showcase the complex
Gronefeld One Hertz.
My first encounter with the Gronefeld Brothers and their watch... The One Hertz, in Vegas, during our IGOTT 2, in 2011. And at the SIHH, some years after... Bes