IWC

Portugieser Chronograph

Name: IWC Portugieser Chronograph
Brand: IWC
SKU: IW371605

IW371605

Classic Portugieser proportions meet a modern in-house chronograph movement.

Estimated market value

$6,200

Confidence: High

An estimate from current market data — not an offer. Your actual value depends on condition, completeness, and authentication.

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Overview

The IWC Portugieser Chronograph reference IW371605 presents the enduring Portugieser silhouette in a 41 mm stainless steel case paired with a clean silver dial. Powered by the in-house Calibre 69355, it represents IWC's commitment to bringing manufacture-level chronograph movements to the core Portugieser line. The result is a watch that balances dressy restraint with genuine horological substance.

History

The Portugieser line traces its origins to the late 1930s, when IWC produced large-cased watches at the request of Portuguese merchants who wanted the precision of a pocket-watch movement in a wristwatch. The chronograph variant has been a cornerstone of the collection for decades, evolving through several movement generations. The introduction of Calibre 69355 in the early 2020s marked a significant milestone, replacing outsourced ebauches with a fully in-house column-wheel chronograph movement. Reference IW371605, produced from 2020 onward, embodies this modern chapter of the Portugieser Chronograph story.

Notable points

Calibre 69355 is an in-house column-wheel chronograph movement, a meaningful upgrade over the outsourced movements used in earlier Portugieser Chronograph references.
The 41 mm stainless steel case maintains the Portugieser's traditionally slim, elegant profile suited to both formal and smart-casual wear.
The silver dial follows the line's characteristic minimalist layout, with applied indices and a subsidiary seconds register complementing the chronograph counters.
A flyback function is not present; the movement operates as a conventional start-stop-reset chronograph, keeping the complication approachable.
The reference sits within a long-running collection that is widely regarded as one of IWC's most historically significant and collector-favoured lines.