Greubel Forsey GMT Quadruple Tourbillon
Greubel Forsey GMT Quadruple Tourbillon – End of the story.
GMT • 2nd time zone • rotating globe with universal time and day-and-night • universal time on 24 time zones • cities observing summer time • lateral window showing the equator and southern hemisphere • GMT pusher • Quadruple Tourbillon • hours and minutes • small seconds • power-reserve.
