This Piaget Altiplano reference G0A42050 marks the model's 60th Anniversary in a limited series of 260 pieces. Its self-winding movement keeps faith with the line's ultra-thin character while preserving the practicality of a date display. In 18k white gold, the case measures 40mm across and 6.36mm thick, a dress proportion that remains notably flat on the wrist. The gray dial gives this anniversary edition a cooler, more contemporary register than the classic silvered Altiplanos beside it. For a collector drawn to Piaget at its most distilled, that combination of thinness, restraint, and a confirmed limited run is the appeal. Within the maison's modern output, this reference stands as a concise statement of the manufacture's long command of ultra-thin watchmaking.