Cartier 430 MC
ProbableUsed where the case is too thin for an automatic, most visibly in the Santos-Dumont. Worth stating plainly because the MC designation invites the opposite reading: this is a group movement finished for Cartier, not a Cartier design, and its bridge layout and rotor-less architecture should be read as Piaget's.
Specifications
- Movement manufacturer
- Cartier
- Base caliber
- Piaget 430P
- Frequency
- 21,600 vph (3 Hz)
- Winding
- manual
- Complications
- Hours and minutes
Architecture
Ultra-thin manually wound caliber with centre hours and minutes only, built on the Piaget 430P — a movement from within the same group rather than an outside purchase.
References using this caliber
- Cartier WGSA0021Factory
Santos · Whole production
Provenance of this record
Sources & Evidence
Cartier — collection and movement specifications
Cartier International
- Accessed
- 2026-08-18
Cited for
Cartier collector research on case numbering, movement supply and house variation
Collector communities and specialist dealers
- Accessed
- 2026-08-18
Cited for
The 430 MC is consistently identified in collector and specialist material as the Piaget 430P finished for Cartier.
Last verified: Not yet reviewed