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
30

Current Listings

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  • Condition: Very Good Condition
  • Boxes: Yes, complete set
  • Papers: Complete
  • Warranty: With warranty card
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  • Condition: Excellent
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  • Bracelet type: Original IWC Leather Strap
Posted at
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  • Condition: Excellent to Like New
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  • Water resistance: 0.0 bar
  • Movement caliber: 95290
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Feb 24, 2025, 6:29 PM
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  • Condition: Excellent
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Posted at
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  • Condition: 95%
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  • Condition: EXCELLENT
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  • Band material: calfskin
  • Case size: 41mm
Posted at
Feb 10, 2025, 12:43 PM
Active