Source: Waqt

the 1941 Case of Principia is identical to the Gronefeld remontoire timepiece, it measures 39,5mm diameter. with a beautiful automatic movement the timepiece is 10,5mm thick, so quite wearable and presence is felt albeit steel case. Tiffany Blue dial...mo

A few friends thought it is a Patek!

[Gronefeld 1941 Principia in stainless steel and light blue] Well worth the 5 year wait Happy Holidays and happy new year to those celebrating. Best. Hussam The case is a work of art.

Taken at Watches and Wonders in 2022. Best, Nicolas

A great combination with the salmon hammered inner dial, outer steel ring with steel indices, and blued hands. A wonderful everyday piece. Super happy with it. Winding it has a unique crown winding feel. Only downside - makes me want a Principia even more

Enjoy your phenomenal Principia. Dutch, so the brothers are a couple of 100 km from me away. I cannot afford a Groenefeld, but superb that watch aficionados with enough money know where they can find Groenefeld. I own a Frederique Constant watch to have a

My newest addition! I loved everything about this watch since I first saw it, and she is absolutely stunning in person.