The Wristwatch Field Guide

IWC Portugieser Chronograph Ceratanium

IW371631

The IWC Portugieser Chronograph Ceratanium is a current-production chronograph watch with a black ceratanium case. It measures 41.0 mm across, 13.1 mm thick, 47.9 mm lug to lug, and is water resistant to 30 m. Inside is the IWC 69355 automatic chronograph, column wheel movement, with 46 hours power reserve. Complications: Chronograph. Brand origin: Switzerland.

Titanium and ceramic chronograph watchesCeramized titaniumBlackDisplay back
Reference
IW371631
Type
Chronograph
Price
Case diameter
41.0 mm
Thickness
13.1 mm
Lug-to-lug
47.9 mm
Water resistance
30 m
Weight
Origin
Switzerland
Movement
Automatic chronograph, column wheel
Caliber
IWC 69355
Power reserve
46 hours
Complications
Chronograph
Material
Ceramized titanium
Grade / type
Ceratanium
Colour
Black
Hardness
Construction
Monobloc
Surface treatment
Caseback
Sapphire (tinted)
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Integrated black textured rubber strap with a Ceratanium buckle
Matching bracelet
Crystal
Sapphire
Display back
Yes
Dial
Black
Lume
Availability
Offered
Status
Current (limited edition of 1,500)
Medium confidence Verified Jul 2026 Source: SJX / IWC product page Maker / listing ↗
Facts are free to cite with a link.
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Frequently asked questions

What is the case material of the IWC Portugieser Chronograph Ceratanium?

The IWC Portugieser Chronograph Ceratanium has a black ceratanium case with a sapphire (tinted) caseback. It is recorded at medium confidence pending a maker-stated material.

What size is the IWC Portugieser Chronograph Ceratanium?

It is 41.0 mm in diameter, 13.1 mm thick, 47.9 mm lug to lug, and water resistant to 30 m.

How much does the IWC Portugieser Chronograph Ceratanium cost, and is it available?

It is current-production; the guide does not list a price for it.

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