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Generic winding stem for Audemars Piguet Calibre 2121, also compatible with AP 2120 and Vacheron Constantin 1120 (ultra-thin automatic movements). Stainless steel, precision Tap 10 threads (0.90mm). Enables manual winding and accurate time-setting. Aftermarket replacement for worn or damaged original stems.
Fits AP 2121/2120 and VC 1120 (based on Jaeger‑LeCoultre 920)
Two crown positions: winding & time‑setting (no hacking)
Stainless steel, durable and precise
Drop‑in replacement, no modification
Affordable alternative to OEM
| Parameter | Value |
|---|---|
| Calibers | AP 2121, AP 2120, VC 1120 |
| Diameter | 28.0 mm (AP 2121) |
| Thickness | 3.05 mm (ultra‑thin) |
| Jewels | 36 (AP) / 36 (VC) |
| Frequency | 19,800 vph (2.75 Hz) |
| Power reserve | 40 hours |
| Crown positions | 2 |
| Thread | 0.90 mm (Tap 10) |
| Material | Stainless steel |
| Type | Aftermarket |
Replace worn/broken stems in AP Royal Oak 15202/15204, VC Overseas 42040, and other 2120/1120-based watches.
Professional watch repair and restoration.
Q1: Genuine AP or VC part?
No, aftermarket.
Q2: Which calibers?
AP 2121, 2120; VC 1120.
Q3: Does it have hacking seconds?
No, these movements have no stop‑seconds function.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.
