The back view of the Grönefeld Principia
By: singingbee : June 20th, 2020-18:45
While some laments the use of a solid rotor on the Grönefeld Principia, the 22-karat solid red gold monobloc rotor of the Principia is actually one of my favourite part of the movement. It is extensively decorated by hand and features a frosted finishing...