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

	Piaget G0A39112	Piaget G0A43112
Model	Altiplano Automatic 38mm	Altiplano Date Automatic 40mm
Caliber	Piaget Cal. 1200P -- in-house automatic, 28,800bph, 44h PR, 27j; only 2.35mm thick -- world record for thinnest self-winding caliber for years; ultra-flat Altiplano benchmark	Piaget Cal. 1203P -- in-house automatic with date, 28,800bph, 44h PR, 29j; used in Altiplano Date Auto; ultra-thin case-integrated architecture
Case size	38mm	40mm
Lug-to-lug	44mm	46mm
Years produced	2010–present	2018–present
Brand tier	luxury	luxury
Era	modern	modern
Movement tier	Unclassified movement	Unclassified movement
Market median (excellent / full-set)	n/a	n/a
Typical range	n/a	n/a
Confidence	low	low
Categories	dress	dress
Editorial	yes	yes

Piaget Altiplano Automatic 38mm vs Piaget Altiplano Date Automatic 40mm