IWC
Calibre 89900
Automatic chronograph
Specifications
- Maker
- IWC
- Type
- Automatic chronograph
- In-house
- Yes
- Power reserve
- 68 h
- Frequency
- Not found in sources
Sources
- Official IWC retrieved October 16, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| IWC Schaffhausen Portugieser Tourbillon Retrograde Chronograph (18 ct 5N gold) IW394005 | 43.5 mm | 15.9 mm | — |
| IWC Schaffhausen Portugieser Tourbillon Retrograde Chronograph (platinum) IW394006 | 43.5 mm | 15.9 mm | — |