IWC Portugieser Portugieser Chronograph Ceratanium

Reference IW3716031

About this watch

The IWC Portugieser Chronograph Ceratanium IW371631, introduced in 2026, is presented in a limited edition of 1,500 pieces. The watch features a 41 mm case crafted from Ceratanium, an IWC-developed material based on a special titanium alloy that is hardened through a firing process. The crown and chronograph pushers are also executed in Ceratanium. Case height measures 13.1 mm. Water resistance is rated at 3 bar. The dial is black with black appliques and hands. Applied Arabic numerals, indices, and the quarter-second scale appear as subtle elevations against the dark background. The chronograph layout consists of two vertically arranged subdials and an inner flange with a quarter-second scale, maintaining the established Portugieser Chronograph configuration. The watch is powered by the IWC-manufactured calibre 69355. This automatic mechanical chronograph movement operates at a frequency of 28,800 vibrations per hour, or 4 Hz, and provides a power reserve of approximately 46 hours. It incorporates 27 jewels and features a column-wheel chronograph mechanism. The movement is visible through a sapphire glass case back. The Portugieser Chronograph Ceratanium IW371631 is fitted with a black rubber strap with a square pattern and a Ceratanium pin buckle.

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Specifications

Brand

IWC

Family

Portugieser

Model

Portugieser Chronograph Ceratanium

Reference

IW3716031

Movement

69355

Movement Features

Hours, Minutes, Small Seconds
Chronograph, Column wheel

Case

41mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

Current Listings

IWC Portugieser Jubilee Ref. 5441 – 18k Rose Gold – Limited Edition 006/500 – REDUCED PRICE

IWC - 5441 · $13,249

A limited edition IWC Portugieser Jubilee Ref. 5441 in 18k rose gold produced to celebrate IWC's 125th anniversary, featuring a manual-winding movement and classic Portugieser design language.

Condition: Overall very good vintage condition, minor scuffing around the ~10 o'clock area on the crystal.
Case Size: ~42 mm
Dial Color: Silver
Movement Type: Manual winding

Posted at

Apr 18, 2026, 2:43 PM

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[US] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW

IWC - IW358312 · $7,025

This IWC Portugieser Automatic 40 is a brand new timepiece with a silver dial and 40mm case size. It features an automatic movement and comes with all original accessories.

Condition: Brand new, unworn
Case size: 40mm
Movement type: Automatic

Posted at

Apr 18, 2026, 8:18 AM

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IWC Portugieser Chronograph IW371624 Dune Dial Full Set

IWC - IW371624 · $7,497

This pre-owned IWC Portugieser Chronograph is a stainless steel timepiece with a dune dial on a black alligator strap, featuring an automatic movement.

Condition: Very good condition
Case diameter: 41mm
Movement type: Automatic

Posted at

Apr 13, 2026, 9:11 AM

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[US] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW

IWC - IW358312 · $7,050

This IWC Portugieser Automatic 40 features a silver dial and is fully functional without any issues.

Condition: Brand new, unworn
Case diameter: 40mm

Posted at

Apr 11, 2026, 8:56 AM

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IWC Schaffhausen Portugieser. Blue Hands/Indices. 40mm. IW358312. Card Included..

IWC Schaffhausen - IW358312 · $5,195

A beautiful IWC Portugieser with inhouse movement and blue hands/indices, featuring a 40mm case.

Movement: inhouse
Diameter: 40mm

Posted at

Apr 7, 2026, 6:58 PM

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IWC Portugieser Perpetual Calendar 42 Boutique Edition Full Set, Mint Condition

IWC - Portugieser Perpetual Calendar 42 Boutique Edition · $22,000

The Portugieser Perpetual Calendar is the crown jewel of IWC's Portugieser line, featuring a rich blue dial with gold-plated hands and 18K gold appliqués. The perpetual calendar itself is a piece of horological history, originally developed by Kurt Klaus in the 1980s.

Condition: Excellent Condition
Case material: 18K Rose Gold
Case size: 42.4mm diameter
Movement: IWC Calibre 82650, Automatic

Posted at

Apr 6, 2026, 7:14 PM

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IWC Portugieser Chronograph - 41mm - Gold Numerals - IW371604 ( new / 2024 )

IWC - IW371604 · $6,995

This IWC Portugieser Chronograph features a stainless steel case and gold numerals. It comes with all the original boxes, papers, booklets, and IWC Warranty Card.

Condition: unworn
Case size: 41mm diameter
Movement: In-House Calibre 69355

Posted at

Apr 2, 2025, 3:10 PM

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