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
- 30
Current Listings
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IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW
This IWC Portugieser Automatic 40 is a mechanical watch with a silver dial and 40mm case. It includes a full set of accessories.
- Condition: Brand new, unworn
- Case size: 40mm diameter
- Water resistance: unknown
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IWC Schaffhausen Portugieser. Blue Hands/Indices. 40mm. IW358312. Card Included..
This IWC Portugieser is a gorgeous timepiece with an inhouse movement, featuring blue hands and indices on a 40mm case.
- Movement type: inhouse automatic
- Diameter: 40mm
![[WTS] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW](https://preview.redd.it/2v6k5wnw6fqg1.jpg?width=640&crop=smart&auto=webp&s=6b34449734005b15ecccd4bfd12c878a7046eea6)
IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW
This is an IWC Portugieser Automatic 40 with a silver dial and 40mm case size. It's brand new and functions perfectly mechanically.
- Condition: Brand new, unworn
- Case diameter: 40mm
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IWC Portugieser Chronograph IW371417 – Box & Papers – Automatic – Excellent Condition
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- Condition: Excellent
- Case Size: 41mm diameter
- Movement: Cal. 79350 automatic movement
- Case Material: Stainless Steel
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- Condition: unworn
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- Movement: In-House Calibre 69355
2023 IWC Portugieser 42 / IW500715
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- Condition: Very Good Condition
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Reduced! IWC Portugieser Chronograph - 18k Rose Gold
The IWC Portugieser Chronograph is an icon of watchmaking. This timeless design, with its perfect proportions and understated elegance, has captivated collectors worldwide.
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- Bracelet type: Original IWC Leather Strap