IWC Portugieser Portugieser Chronograph Ceratanium

Reference IW37160-31

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

IW37160-31

Movement

69355

Movement Features

Hours, Minutes, Small Seconds
Chronograph, Column wheel

Case

41mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

Current Listings

2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995

IWC - IW371615 · $5,995

2022 IWC Portugieser Chronograph Green, a timepiece in excellent condition.

Condition: Excellent condition with minimal signs of wear
Year: 2022
Case size: 41mm

Posted at

May 2, 2026, 12:25 PM

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IWC Portugieser Regulateur. IW544401. Box, Papers...

IWC - IW544401 · $5,800

A Portugieser Regulateur from IWC, a watch known for its intricate mechanical movements and classic design.

Box And Papers: Included
Shipping Methods: Fedex with insurance

Posted at

May 2, 2026, 11:22 AM

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

IWC - IW358312 · $6,975

The IWC Portugieser Automatic 40 is a high-end watch featuring a silver dial and 40mm case size. It has a mechanical automatic movement and comes with various accessories.

Condition: Brand new, unworn, pristine condition
Case diameter: 40mm

Posted at

May 2, 2026, 7:36 AM

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

IWC - 5441 · $12,899

This IWC Portugieser Jubilee Ref. 5441 is a limited edition of 500 pieces produced in rose gold to celebrate the 125th anniversary of International Watch Company. It features a classic design language inspired by the original 1930s models, including a silver dial and manual-winding IWC Caliber 9828 movement.

Condition: Overall very good vintage condition, minor scuffing around the ~10 o'clock area on the crystal
Case Size: ~42 mm
Diameter: ~42 mm
Movement: IWC Caliber 9828, manual wind

Posted at

Apr 28, 2026, 9:28 PM

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2020 IWC Portugieser Yacht Club "Orlebar Brown" - IW390704 - Full Set Priced to Fly

IWC - IW390704 · $7,500

A beautiful summer timepiece by IWC, the Portugieser Yacht Club Chronograph Edition 'Orlebar Brown' has a fresh and crisp aesthetic while maintaining its classic iconic design.

Condition: great preowned condition with minor signs of wear throughout the case, caseback, case sides, bracelet, and clasp
Year: 2020
Case size: 44mm
Crystal type: sapphire

Posted at

Apr 27, 2026, 7:20 PM

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IWC Portugieser Chronograph IW371624 Dune Dial Full Set

IWC - IW371624 · $7,497

This pre-owned IWC Portugieser Chronograph features a stainless steel case with a dune dial and black alligator strap. The watch comes in a full set, including box, papers, and original contents.

Condition: Very good
Case size: 41 mm
Case material: Stainless steel

Posted at

Apr 27, 2026, 9:52 AM

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IWC Portugieser Regulateur. IW544401. Box, Papers...

IWC - IW544401 · $6,600

IWC Portugieser Regulateur for sale, complete with box and papers.

Box: true
Papers: true

Posted at

Apr 25, 2026, 11:42 AM

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

IWC - IW358312 · $7,000

This IWC Portugieser Automatic 40 is a brand new timepiece with a silver dial and 40mm case. It features an automatic movement and comes with various accessories such as a box, manual, warranty booklet, microfiber cloth, link tools, and digital transferable warranty.

Condition: Brand new, unworn
Case size: 40mm diameter

Posted at

Apr 25, 2026, 9:21 AM

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