IWC
Calibre 52640
Automatic
Specifications
- Maker
- IWC
- Type
- Automatic
- In-house
- Yes
- Power reserve
- 168 h
- Frequency
- Not found in sources
Sources
- Official IWC retrieved October 16, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| IWC Schaffhausen Portugieser Eternal Calendar IW505701 | 44.4 mm | 14.9 mm | — |