IWC Portugieser IW5037-03

44.4mm · White Gold · Caliber 52616 · 50m

Portugieser Perpetual Calendar 44 White Gold / Ice Blue

Brand: IWC
Full reference: IW5037-03
Also written as: IW503703
Collection: Portugieser
Case diameter: 44.4mm
Case thickness: 14.9mm
Lug width: 22mm
Case material: White Gold
Crystal: Sapphire
Water resistance: 50m
Caliber: 52616
Dial color: Blue

Related references — same collection

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

IWC

Portugieser

IW5037-04

44.4mmWhite Gold

IWC

Portugieser

IW5037-01

44.4mmArmor Gold

IWC

Portugieser

IW5037-02

44.4mmArmor Gold

IWC

Portugieser

IW503703

44mmWhite Gold

Compare specifications

Specification	IW5037-03	IW5037-04	IW5037-01	IW5037-02	IW503703
Case diameter	44.4mm	44.4mm	44.4mm	44.4mm	44mm
Case material	White Gold	White Gold	Armor Gold	Armor Gold	White Gold
Water resistance	50m	50m	50m	50m	50m
Movement	—	—	—	—	Automatic
Caliber	52616	52616	52616	52616	52616
Power reserve	—	—	—	—	168 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 11:58:16 JST

WatchBase · IWC IW5037-03

Original collection: Portugieser

Images are loaded from the cited external sources. Copyright remains with its holders; permission to reproduce locally has not been established.

Corrections and data limitations