Portugieser Chronograph Black Dial Ceratanium (IW371631)

Available at the IWC Schaffhausen Palm Beach Boutique

Call to Purchase (561)670-2920

The IWC Portugieser Chronograph Ceratanium IW371631 is a striking all-black limited-edition reinterpretation of the iconic Portugieser chronograph, featuring a 41mm case, crown, pushers, and bezel crafted entirely in IWC’s proprietary Ceratanium® — a lightweight, ultra-hard material that combines the strength of titanium with the scratch resistance of ceramic. Its matte-black aesthetic is completed by a matching matte black dial with applied Arabic numerals, blackened hands, and a black textured rubber strap, delivering a stealthy, modern take on classical elegance while housing a robust in-house chronograph movement.

• Case Material: Ceratanium® with a 41mm diameter, 13.1mm thickness, and approximately 47.9mm lug-to-lug; matte finish throughout.

• Movement: Automatic IWC-manufactured Calibre 69355 with column-wheel chronograph, double-pawl winding system, 27 jewels, 28,800 vph (4 Hz), and a 46-hour power reserve.

• Dial: Matte black with black applied Arabic numerals and baton markers, angled inner flange with quarter-second scale, small seconds sub-dial at 9 o’clock, and 30-minute chronograph counter at 3 o’clock.

• Chronograph Functions: Central chronograph seconds hand with 60-minute and 30-minute counters for precise timing.

• Strap & Buckle: Black textured rubber strap with a Ceratanium® pin buckle for comfortable, secure wear and a sporty feel.

• Limited Edition: Limited to 1,500 pieces worldwide.

• Authorized IWC Dealer: Guaranteed authentic, backed by the IWC 2-year warranty extendable to 8-years with registration.