Some specifications for this reference are on file; the record is incomplete.
Greubel Forsey · GMT
GMT
Ref. GMT
currentModernPartially documentedLast reviewed Not yet reviewed
Missing informationCore fields not yet documented for this reference: Case diameter, Caliber, Production, Water resistance, Dial
Authentication Notes
Dial
HighProbable
The globe is a sphere and it turns once a day
A three-dimensional rotating globe, visible from the dial side and through the case flank, completing one revolution every twenty-four hours. Its rotation is slow enough that it must be checked over time rather than observed instantly — but a printed disc or a static sphere will not move at all, which is a difference that becomes obvious within an hour.
Inspection points
No inspection checklist has been published for this reference.