2017–2022 · 40mm · caliber Piaget Cal. 430P -- in-house manual-wind, 18,000bph, 43h PR, 18j; used in Altiplano 60th; only 3.65mm thick; launched to celebrate 60 years of ultra-thin expertise in 2017
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Movement tier: unclassified · caliber Piaget Cal. 430P -- in-house manual-wind, 18,000bph, 43h PR, 18j; used in Altiplano 60th; only 3.65mm thick; launched to celebrate 60 years of ultra-thin expertise in 2017
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
40 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.
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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.
Known issues in the market
Limited editions require complete paperwork verification; the 460-piece production run means authentic examples have all original documentation, and papers are a significant part of the collectible value.
Cal. 430P is an older Piaget caliber with historical significance; verify through the caseback that this specific caliber is present and not a later substitute.
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
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
Common legitimate replacements
Papers are a critical component of the 460-piece anniversary edition's value; incomplete documentation reduces both monetary and collectible value significantly.
Leather straps are frequently replaced; factory Piaget anniversary straps have specific stitching and a signed buckle matching the anniversary edition.
Expert resources: Piaget Altiplano 60th Anniversary documentation at piaget.com. TimeZone Piaget subforum for anniversary edition serial number and documentation references.
