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
IWC Portugieser Minute Repeater Grey Dial White Gold 43mm Ref. IW524205 REDUCED!
The IWC Portugieser Minute Repeater is a brilliant invention from the 17th century, featuring a sonorous minute repeating mechanism that chimes out the hours, quarters and minutes on two finely tuned gongs. The watch has a grey dial and is housed in an 18k white gold case with a diameter of 43mm.
- Condition: Excellent to Like New
- Case size: 43mm
- Water resistance: 0.0 bar
- Movement caliber: 95290
IWC Portugieser Chronograph - 18k Rose Gold
The IWC Portugieser Chronograph is an icon of watchmaking with a timeless design and understated elegance. This 18k solid rose gold version offers a significant increase in luxury and exclusivity.
- Condition: Excellent
- Case material: 18k solid rose gold
- Band: Original IWC Leather Strap with 18k RG Tang Buckle
IWC Portugieser Automatic 7 Day Power Reserve Reference 500705 Blue Hand & Index
IWC Portugieser Automatic 7 Day Power Reserve with blue hand and index, a men's watch measuring 43mm in size.
- Condition: 95%
- Case Material: 18K Rose Gold
- Movement Type: Mechanical Manual
IWC Portugieser Chronograph - 41mm - Beige Dial - IW371624 ( unworn / 2025 )
Up for sale is an unworn IWC Portugieser Chronograph in 41mm stainless steel, featuring a beige dial and in-house Calibre 69355.
- Condition: Unworn
- Case material: Stainless Steel
- Case size: 41mm
IWC SCHAFFHAUSEN PORTUGIESER CHRONOGRAPH YEAR OF THE DRAGON 41mm IW371629
This IWC Portugieser Chronograph features a red dial and is housed in a 41mm stainless steel case, paired with a black calfskin strap.
- Condition: EXCELLENT
- Material: stainless steel
- Band material: calfskin
- Case size: 41mm
IWC Portugieser Automatic 42.3MM Black Stainless Steel FULL SET MINT IW500703
The IWC Portugieser Automatic is a tribute to the brand's maritime heritage, featuring a stainless steel case and pitch black dial. It has a 7-day power reserve and includes hours, minutes, elapsed seconds subdial, and power reserve indicator.
- Condition: Mint condition with little to no signs of wear
- Case size: 42.3MM
- Water resistance: unknown
- Movement: Automatic
MINT Iwc IW500701 PORTUGIESER 7 DAY POWER RESERVE 18K ROSE GOLD 2024 FULL SET
This is a beautiful 2024 IWC Portuguese 7 Day Power Reserve in 18K rose gold with a silver dial and 41mm case. It comes with a Santoni dark brown alligator leather strap and an 18K rose gold deployant clasp.
- Condition: Mint, unpolished condition
- Case Size: 41mm
- Power Reserve: 7 days
- Warranty Years Remaining: under 8 years
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