The Piaget Altiplano Ultra Thin reference G0A38139 distinguishes itself through its 40mm 18k rose gold case paired with a bezel set with 72 brilliant-cut diamonds, totaling approximately 0.7 carats. This configuration presents a sophisticated aesthetic that balances the warmth of rose gold with the brilliance of diamonds, creating an elegant and versatile timepiece. The silver dial is executed with a classic Clous de Paris guilloché pattern, providing a textured backdrop for the applied rose gold baton indices and dauphine hands. This is all presented on a brown, hand-stitched alligator leather strap with an 18k rose gold ardillon buckle, completing a cohesive and refined design. The entire case and bracelet are finished with a combination of polished and satin-brushed surfaces, demonstrating Piaget’s impeccable attention to detail in both material selection and finishing.
Powering this watch is the Piaget caliber 1203P, an automatic movement that is a mere 3mm thick, a key factor in achieving the Altiplano’s signature ultra-thin profile. This movement operates at 21,600 vibrations per hour and offers a 44-hour power reserve. It is decorated with traditional techniques, including Côtes de Genève on the bridges, a circular-grained mainplate, and blued screws. The only complication is a central seconds hand, a deliberate choice that prioritizes the purity of the ultra-thin design and ensures reliable timekeeping. The movement’s construction and finishing are visible through the sapphire crystal case back, allowing for a full appreciation of its technical execution and flawless assembly, which is characteristic of Piaget’s in-house manufacturing capabilities.
This particular example is in mint condition and is effectively new, showing no signs of prior wear. It is accompanied by its official Piaget warranty card and presentation box. Within the luxury watch market, the Altiplano collection holds a strong position, recognized for its historic contributions to ultra-thin watchmaking. A model such as this, with its precious metal case, diamond bezel, and classic silver dial, represents a sound acquisition. Its combination of technical achievement and elegant design ensures its continued appeal to collectors who value understated sophistication and proven horological innovation. The model’s enduring design and Piaget’s reputation for craftsmanship contribute directly to its long-term collectibility and stable market value.

