[4K Video] What's changed and what hasn't changed with the IWC Portugieser Chronograph now that it's equipped with an in-house movement [Explanation]

The watch commentary video brought to you by the Chronos Japan editorial team allows you to enjoy the beautiful movement and movement of the hands in 4K high-definition, while also enjoying expert commentary from Editor-in-Chief Masamasa Hirota. This time, we'll be introducing the IWC Portugieser Chronograph!

IWC Portuguese Chronograph

With the 2020 model change, the new Portugieser Chronograph's movement was changed from the ETA7750-based Cal. 79350 to the in-house Cal. 69355.

What exactly has changed with the switch to an in-house movement, and what is the unchanging appeal of the Portugieser? Editor-in-Chief Hirota, a self-confessed IWC enthusiast, will provide a more enthusiastic explanation than anywhere else.

Introduction model overview

This long-selling model underwent a model change in 2020. Previously, the movement used was the ETA7750-based Cal. 79350, but this model uses the in-house Cal. 69355. The chronograph control parts have been changed from a cam to a column wheel, making it a completely different watch.