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Generic mainspring for Cartier Calibre 430 ultra‑thin hand‑wound movement, also compatible with Piaget 430P. Stores and releases energy to drive the gear train. Restores original power reserve and consistent timekeeping. Aftermarket replacement for worn or broken original springs.
Precision‑wound for Calibre 430 / 430P barrel – exact fit.
High‑grade alloy steel – durable, fatigue‑resistant.
Restores 43‑hour power reserve and stable amplitude.
Drop‑in replacement – no movement modification.
Essential for ultra‑thin movement service.
| Parameter | Value |
|---|---|
| Compatible calibers | Cartier 430, Piaget 430P |
| Power reserve | approx. 43 hours |
| Frequency | 21,600 vph (3 Hz) |
| Material | High‑grade alloy steel |
| Type | Aftermarket |
Replace worn/broken mainspring during full service of Cartier 430 or Piaget 430P.
Suitable for Cartier Tank, Santos-Dumont, and Piaget Altiplano ultra‑thin hand‑wind models.
Professional watch repair only.
Q1: Genuine Cartier part? No, generic aftermarket.
Q2: Does it fit Piaget 430P? Yes, fully compatible.
Q3: What power reserve after replacement? Approx. 43 hours.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
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Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.
