R
499
One Hertz 1912
It has been a while since I've posted something. I would like to share a recent addition to my colllection, the Grönefeld One Hertz 1912.
Community
Discover Gary G's watch collecting philosophy, daily wear choices, and insights into independent watchmakers in this Purist-of-the-Week feature. Learn what drives a seasoned collector.
118 replies28680 views
Independents
Gary G's in-depth review of the Philippe Dufour Simplicity. Discover wearing impressions, design coherence, and community debate.
79 replies26906 views
Complications
Explore the intriguing world of deadbeat seconds watches. KMII's guide covers jumping seconds calibers from A. Lange & Söhne, Arnold & Son, and more, with collector insights on rarity and appeal.
67 replies22051 views
Manufacture
Witness the intricate process of finishing a movement bridge for the Grönefeld One Hertz caliber G-02. A detailed photo essay reveals the artistry of independent watchmaking.
35 replies21383 views
Independents
BjoernM21 reviews essential books on independent master watchmakers, offering a guide to building a horological library and preserving knowledge.
11 replies13042 views
Independents
First look at Gary G's custom Grönefeld One Hertz in titanium with a blue dial. Discover initial impressions, design coherence, and unique wearing characteristics of this independent timepiece.
36 replies9058 views
One Hertz 1912
It has been a while since I've posted something. I would like to share a recent addition to my colllection, the Grönefeld One Hertz 1912. ...
Striking dial and movement!
Can you explain what the 1 hertz is referring to…which cycle frequency exactly?
I can’t settle on a favorite amongst the 3 photos.
Your photos do the watch justice. Lovely early piece Gronie. Wear it in good health
A very important and gorgeous watch from the horological brothers 👌🏻😘
You know how i envied you when you told me you bought it 😉 . A true beauty and one i hope too add one day 🙏🏻 Personal watch from Tim ...
