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
IWC Portugieser Chronograph - 41mm - Blue Rubber - IW371620 ( new / 2024 )
This IWC Portugieser Chronograph features a 41mm stainless steel case, white and blue dial, and comes with an IWC Warranty Card dated November 2024.
- Condition: Unworn condition
- Case size: 41mm diameter
- Movement: In-House Calibre 69355
IWC Portugieser Chronograph - 41mm - Blue Dial - IW371606 ( new / 2024 )
This IWC Portugieser Chronograph features a stainless steel case, in-house Calibre 69355 movement, and blue dial.
- Condition: Unworn
- Case size: 41mm diameter
- Materials: Stainless Steel