Greubel Forsey GMT Balancier Convexe vs Greubel Forsey Balancier Convexe S²

Side-by-side at a glance. Click a watch above to open the full reference page.

	Greubel Forsey GMT Balancier Convexe	Greubel Forsey Balancier Convexe S²
Model	GMT Balancier Convexe	Balancier Convexe S²
Caliber	Greubel Forsey manual-wind caliber -- inclined 30° balance wheel visible through a dial-side aperture, plus a three-dimensional rotating titanium globe showing world time in real time; second-timezone hand and day/night indicator	Greubel Forsey Balancier Convexe (in-house)
Case size	42.9mm	41.5mm
Lug-to-lug	n/a	47.5mm
Years produced	2022–present	2021–present
Brand tier	top-luxury	top-luxury
Era	modern	modern
Movement tier	In-house manufacture	In-house manufacture
Market median (excellent / full-set)	n/a	n/a
Typical range	n/a	n/a
Confidence	low	low
Categories	gmt-worldtime, dress	sport
Editorial	n/a	yes