Piaget · Family: Altiplano
The Piaget Altiplano Mechanical Rose Gold Ultra-Thin G0A51500 is a 38mm rose gold dress watch with a silver dial, part of the Altiplano line through which Piaget has defended its leadership in ultra-thin watchmaking for decades. It runs a hand-wound caliber just 2.15mm thick, with 40 hours of power reserve and functions limited to hours and minutes. Cazador has no verified price observations yet for this reference. Its standout detail: the complete case measures just 6mm thick, placing this Altiplano among the thinnest mechanical watches on today's market.
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Piaget was founded in 1874 in La Côte-aux-Fées, Switzerland, initially as a manufacturer of movements for other watch houses before launching its own brand of finished watches in the mid-20th century. Since then, the manufacture has built much of its identity around two specialties: high-end jewelry and ultra-thin movements, a technical field in which it has set several historic records for minimum thickness.
The Altiplano line, launched as a dedicated collection in the 1990s though descended from earlier ultra-thin models from the house, concentrates that extreme-thinness vocation into dress watches with pared-back lines and almost no dial ornament, where the watch's own thinness becomes the central design argument. The G0A51500 version takes that philosophy to its purest expression: a rose gold case just 6mm thick overall, a figure that demands an equally compact movement inside.
The hand-wound caliber fitted to this reference measures just 2.15mm thick and 20.2mm in diameter (9 lignes), packing 131 components and 18 jewels into minimal space. By skipping a seconds hand and limiting itself to hours and minutes, the movement avoids extra mechanism layers that would add thickness — a deliberate design choice, not a technical limitation: Piaget also makes ultra-thin calibers with added complications, reserved for thicker cases.
With 40 hours of power reserve and a silver dial mounted on a green calf leather strap with a gold ardillon buckle, the G0A51500 is built for formal dress wear rather than sport, reinforced by a water resistance of just 3 bar. This is the second Piaget reference in Cazador's catalog, after the Polo, and the first from the Altiplano line.
Cazador has no verified price observations for this reference (0 PricePoints recorded as of today). We do not publish estimates without our own sourced market data.
The complete case measures 6mm thick, while the movement inside measures just 2.15mm, one of the thinnest combinations in mechanical watchmaking today.
No; it's a hand-wound caliber, with 40 hours of power reserve, functions limited to hours and minutes, and 131 components packed into a space just 20.2mm across.
Skipping the seconds hand keeps the movement as flat as possible, in line with the ultra-thin watchmaking philosophy that defines Piaget's entire Altiplano line.
Only up to 3 bar, a basic rating suited to a dress watch, with no sporting or aquatic ambitions.
Piaget has spent decades setting records for minimum thickness in mechanical movements, a specialty rooted in its origins as a movement supplier to other watch houses before launching its own brand of finished watches.