IWC Portugieser IW3904-05

42mm · Red Gold · Caliber 89361 · 30m

Portuguese Chronograph Classic Red Gold / Ardoise

Brand: IWC
Full reference: IW3904-05
Also written as: IW390405
Collection: Portugieser
Case diameter: 42mm
Case thickness: 14.5mm
Case material: Red Gold
Crystal: Sapphire
Water resistance: 30m
Caliber: 89361
Dial color: Grey

Related references — same collection

Shared specifications help discovery; these links do not assert a predecessor or successor relationship.

IWC

Portugieser

IW3903-01

42mmRed Gold

IWC

Portugieser

IW3903-05

42mmRed Gold

IWC

Portugieser

IW390301

42mmRed Gold

IWC

Portugieser

IW3904-02

42mmRed Gold

Compare specifications

Specification	IW3904-05	IW3903-01	IW3903-05	IW390301	IW3904-02
Case diameter	42mm	42mm	42mm	42mm	42mm
Case material	Red Gold	Red Gold	Red Gold	Red Gold	Red Gold
Water resistance	30m	30m	30m	60m	30m
Movement	—	—	—	Automatic	—
Caliber	89361	89361	89361	89361	89361
Power reserve	—	—	—	68 hours	—

Sources & record notes

Displayed specifications follow the most complete source record. Other source records are retained below; conflicting values are not silently combined. WatchBase.

WatchBase ↗ · 2026-09-22 11:51:09 JST

WatchBase · IWC IW3904-05

Original collection: Portugieser

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Corrections and data limitations