IWC 69355
High confidenceIWC's own chronograph caliber, replacing the Valjoux 7750-based movements the Portugieser Chronograph had used. The register layout differs between the generations, so the dial itself indicates which caliber should be inside — a rare case where the complication's layout does the caliber identification.
Specifications
- Movement manufacturer
- IWC
- Production
- 2016–present
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 46 hours
- Winding
- automatic
- Complications
- Chronograph · Column wheel · Date
Architecture
In-house integrated automatic chronograph with a column wheel and bidirectional pawl winding, three registers.
References using this caliber
- IWC IW371605Factory
Portugieser · Whole production
Provenance of this record
Sources & Evidence
Primary sourceManufacturer documentation
IWC — collection and caliber specifications
IWC Schaffhausen
- Accessed
- 2026-08-18
Cited for
This referenceHigh confidence
Last verified: Not yet reviewed