IWC Portofino IW3731-03

IWC Portofino IW3731-03

35mm · Caliber 631 · 30m

Portofino Chronograph MecaQuartz Stainless Steel / Yellow Gold / White / Alligator

Brand
IWC
Full reference
IW3731-03
Also written as
IW373103
Collection
Portofino
Case diameter
35mm
Case thickness
7.8mm
Lug width
18mm
Crystal
Sapphire
Water resistance
30m
Caliber
631
Dial color
White

Related references — same collection

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

Compare specifications

SpecificationIW3731-03IW3731-01IW3731-02IW3731-04IW3731-05
Case diameter35mm35mm35mm35mm35mm
Case material—Yellow GoldYellow Gold—Yellow Gold
Water resistance30m30m30m30m30m
Caliber631631631631631

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 · IWC IW3731-03

Original collection: Portofino

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Corrections and data limitations