replica greubel forsey watches Two times Tourbillon 30 ° Strategy Ceramic   In pursuit of extremely high precision, Robert Greubel and Stephen Forsey did start to create a work in 99 that reinterpreted the tourbillon and improved the moment function. The double tourbillon 30 ° is Grauber Fossi's first basic technology and was exhibited with the Basel Watch Fair 7 years...