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IWC Unknown IWC IW371631 Portugieser Chronograph Ceratanium
Ref. no. IW371631
IWC Unknown IWC IW371631 Portugieser Chronograph Ceratanium
Ref. no. IW371631
+ € 100 insured shipping
Available
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Description
IWC Portugieser Chronograph Ceratanium® – Ref. IW371631
The IWC Portugieser Chronograph Ceratanium® Ref. IW371631 is a bold reinterpretation of one of IWC Schaffhausen’s most iconic timepieces. Combining the timeless elegance of the Portugieser collection with the brand’s innovative Ceratanium® case material, this limited-edition chronograph offers a striking monochromatic aesthetic and exceptional technical performance.
The 41 mm case, crown, pushers, and pin buckle are crafted entirely from Ceratanium®, an advanced material developed by IWC that combines the lightweight properties of titanium with the hardness and scratch resistance of ceramic. The result is a distinctive matte-black finish that is integral to the material itself, creating a stealthy and contemporary appearance.
The watch features a deep black dial with black appliqués, black Arabic numerals, and black feuille hands, resulting in a clean, minimalist design while maintaining the unmistakable proportions of the classic Portugieser Chronograph. A textured black rubber strap completes the all-black aesthetic, making this model both sporty and sophisticated.
Powering the watch is the IWC Manufacture Calibre 69355, a robust automatic chronograph movement featuring a classic column-wheel architecture. Visible through the tinted sapphire crystal exhibition case back, the movement offers a power reserve of approximately 46 hours and is finished to IWC’s high standards of precision and craftsmanship.
Limited to just 1,500 pieces worldwide, the IW371631 is a highly collectible expression of modern Swiss watchmaking, combining innovative materials with one of the industry's most recognizable chronograph designs.
Technical Specifications:
Reference: IW371631
Collection: Portugieser Chronograph
Limited Edition: 1,500 pieces
Case: Ceratanium®
Case Diameter: 41.0 mm
Thickness: 13.1 mm
Dial: Black with black appliqués, Arabic numerals, and feuille hands
Movement: IWC Manufacture Calibre 69355
Winding: Automatic
Power Reserve: Approximately 46 hours
Functions: Hours, minutes, small seconds, chronograph with 30-minute counter
Crystal: Sapphire crystal with anti-reflective coating on both sides
Case Back: Tinted sapphire crystal exhibition case back
Water Resistance: 3 bar (30 meters)
Strap: Black textured rubber strap with Ceratanium® pin buckle
The IWC Portugieser Chronograph Ceratanium® Ref. IW371631 is an exceptional collector’s timepiece that seamlessly blends innovative materials, contemporary design, and traditional Swiss watchmaking. Its exclusive all-black execution and limited production make it a standout addition to any discerning watch collection.
Full Set, brand new & unworn
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IWC Unknown IWC IW371631 Portugieser Chronograph Ceratanium
Ref. no. IW371631
+ € 100 insured shipping
Available
Ready to ship in 1-3 days
-
100% Authentic watches
-
Buyer protection with ESCROW-service
-
Customers rate Wristler 4.9/5
-
Safe pick-up or delivery, warranty & easy returns
-
Real people, real service
Chronomotion
Average response time: 4 hours
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Ref. no. IW371631
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IWC IW371631 Portugieser Chronograph Ceratanium
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Ref. no. IW371631
IWC Unknown
IWC IW371631 Portugieser Chronograph Ceratanium
Ref. no. IW371631
IWC Unknown
IWC IW371631 Portugieser Chronograph Ceratanium
Ref. no. IW371631
IWC Unknown
IWC IW371631 Portugieser Chronograph Ceratanium
- New / unworn
- The watch has not been worn and is in new condition. It may come directly from an authorised dealer or the brand itself, or it may have been recently traded without being worn.
- Pre-owned
- The watch has previously been traded and may show light to visible signs of wear, depending on the stated condition.
The condition is determined by the seller based on visual inspection and functional assessment in accordance with Wristler guidelines.
- New
- Sourced directly from an authorised dealer or the brand. Unpolished and free from signs of wear. Delivered with full manufacturer’s warranty. The warranty period begins upon registration with the brand and may have already started prior to delivery to the final buyer.
- Unworn
- Previously traded but never worn. May qualify as New Old Stock (NOS). Free from visible signs of wear. Does not imply anything about remaining manufacturer’s warranty or the presence of factory stickers.
- Very good
- Minor signs of wear such as hairline marks or small surface scratches. Case, bezel, and bracelet retain sharp edges and overall form. May have been professionally polished without affecting the original contours. Fully functional mechanically.
- Good
- Visible signs of wear such as scratches, small dents, or light bracelet stretch. May have been professionally polished. Fully functional mechanically.
- Fair
- Clearly visible signs of wear, including scratches, dents, or noticeable bracelet or clasp wear. Servicing may be recommended in the future. Fully functional unless otherwise stated.
All watches offered on Wristler are fully functional and meet normal expectations for mechanical performance unless explicitly stated otherwise. The seller provides a guarantee on proper mechanical operation.
Water resistance cannot be guaranteed for older watches unless specifically indicated.
If you have any doubts about the condition, carefully review the photos and description. You may contact the seller via chat to request additional photos or video material to better assess the watch before purchase.