IWC Portugieser IW325-03

The IWC Portugieser IW325-03 takes a 19 mm watch band.

IWC · Portugieser

19mm

lug width

Shop 19 mm bands

Every watch that takes 19 mm →

Lug width: 19 mm
Case diameter: 42 mm
Reference: IW325-03
Family: Portugieser
Case material: Acciaio
Model: Portugieser 325 Black / Sector / Feuille
Year: 1939 - 1970

Bands that fit

Cut and stitched in Milano, in the width this watch takes.

Hammered Black Calfskin Strap — Ecru Stitching€98

Brown Italian Leather Strap€80

Black Saffiano Strap Ecru Stitching€90

Vintage Brown Calfskin Strap — Natural Patina€98

Swift Topo Leather Strap€120

Green Lizard Strap€145

See every 19 mm band →

Will a strap close on your wrist?

Set for this watch: 42 mm of case and 19 mm between the lugs. Add your wrist and see where a standard strap would close.

Your wrist

Watch length, lug to lug

Filled in with the case diameter, which is what we hold for this reference. Measure the watch tip to tip for the exact answer: it is usually a few mm more.

Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.

Why ready-made straps come in one length →

Sizing notes

19 mm is the gap between the lugs, so a 19 mm band goes in without adapters. Whether it sits flush against a 42 mm case depends on how that case is shaped.
19 mm is an odd size: most ready-made bands are made in even widths, so this reference needs one cut to measure or a band that runs in odd sizes. Why some watches take odd sizes →
Inside the Portugieser family the lug width is not one number: it runs 18, 19, 20, 21, 22 mm. This reference is the 19 mm one, so a band bought for another Portugieser may not fit it. Why the size changes inside a family →
19 mm is not a common size: only 1,919 of the 41,485 watches measured take it (4.6%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 19 mm →