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Limited to 460 pieces; all accompanying documentation must be present and the caliber in the papers must match the Cal. 430P visible through the caseback.
| Area | What to check | What is correct | Red flag |
|---|---|---|---|
| caseback | Cal. 430P identification and papers match | Exhibition caseback showing Cal. 430P; caliber text matches accompanying papers; serial number consistent with 460-piece production run | Caliber number that does not match papers; serial number outside the 460-piece range; solid caseback on exhibition-spec model |
| dial | 60th anniversary dial text and sunray finish | Silver sunray dial with specific anniversary text; text positioning and font consistent with Piaget press materials | Missing anniversary text; incorrect dial finish; dial text that does not match Piaget 60th anniversary specification |
| movement | Cal. 430P winding and rate | Smooth manual winding throughout; movement runs at correct rate at 18,000bph (slower beat than modern movements) | Rough winding; incorrect beat rate; movement running significantly fast or slow indicating service need |
The Altiplano 60th Anniversary commemorates 60 years of ultra-thin expertise (2017) using caliber 430P, a manual-wind movement at 3.65mm thickness in a total case height of 5.25mm. Production ran 2017-2022 -- this is a limited-production piece, not an ongoing production reference.
