mahesh[Moderator]
7981
a very recent picture of Gronefeld Principia....
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...more youthful and flamboyant IMHO...
I think Principia is practical, simple time-only powered with automatic with 56 hours of PR, so not much hassle of winding.
Great daily wearer ! I prefer Turquoise dial while the Tiffany blue is very good too.
which one you prefer ?
Best,
mahesh.,