A gemstone found in every pastel colour. The red variety was often mistaken for ruby. It has a hardness of 8, a specific gravity of 3.58-4.06, and a refractive index of 1.72.
Which are the features of a Fine Watch?
Learn about the criterias of Fine Watchmaking.
23 May 2013
Unveiled as a concept watch in 2010, the magnetic Pendulum system is now ready for production. Maximum frequency is curr…
17 May 2013
While Patek Philippe again claimed the most valuable lot at the spring auction session in Geneva, Rolex confirmed its as…