Hands-On with Greubel Forsey Double Tourbillon 30° Technique

In 2005, Greubel Forsey introduced the Double Tourbillon 30° which featured one tourbillon cage completing a rotation every 60-seconds (at an angle of 30°), inside an outer cage with a four minute rotation. This was the brand’s first horological creation, and is the basis …

Imported: 29. Dec 2014 (17:18), PROFESSIONAL WATCHES

Permanent link: http://feedproxy.google.com/~r/professionalwatches/~3/aPesSYijn8A/hands-on-greubel-forsey-double-tourbillon-30-technique.html