INVENTION PIECE 1 by Greubel Forsey

September 2008

Platinum (43.5 mm) double tourbillon equipped with a patented manual GF 02N calibre.
Off centre double tourbillon (one inside at an angle of 30° that rotates every 60 seconds and one on the outside that rotates every 4 minutes), sectorial display of hours and minutes, seconds display, 72-hour power reserve indicator, convex sapphire crystal, 38 jewels, 21,600 vib/h, hand-sewn black alligator strap and water-resistant to 30 metres.


Source: Europa Star August-September 2008 Magazine Issue