IWC Portugieser IW3907-03

44.6mm · Caliber 89361 · 60m

Portugieser Yacht Club Chronograph Stainless Steel - Red Gold / Silver / Bracelet

Brand: IWC
Full reference: IW3907-03
Also written as: IW390703
Collection: Portugieser
Case diameter: 44.6mm
Case thickness: 14.4mm
Crystal: Sapphire
Water resistance: 60m
Caliber: 89361
Dial color: Silver

Related references — same collection

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

IWC

Portugieser

IW3907-01

44.6mmStainless Steel

IWC

Portugieser

IW3907-02

44.6mmStainless Steel

IWC

Portugieser

IW3907-04

44.6mmStainless Steel

IWC

Portugieser

IW390701

44.6mmStainless Steel

Compare specifications

Specification	IW3907-03	IW3907-01	IW3907-02	IW3907-04	IW390701
Case diameter	44.6mm	44.6mm	44.6mm	44.6mm	44.6mm
Case material	—	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel
Water resistance	60m	60m	60m	60m	60m
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 11:51:41 JST

WatchBase · IWC IW3907-03

Original collection: Portugieser

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Corrections and data limitations