01.03.2026

IWC's Portugieser Chronograph goes "the dark knight" in indestructible Ceratanium

Just 1,500 pieces of this blacked-out, column-wheel chronograph will exist. Here's why it belongs on your wrist.

Words: Victor Goh

Photos courtesy of IWC.
 

Bruce Wayne didn't get to where he is by wearing beige. And neither, it seems, did IWC Schaffhausen — because the Swiss watchmaker has taken its most beloved chronograph, dipped it head-to-toe in the darkest shade of midnight, and sent it out into the city looking like it means serious business.

Welcome to the Portugieser Chronograph Ceratanium (Ref. IW371631), all 41mm of brooding, blacked-out, scratch-proof magnificence. Limited to 1,500 pieces. Not a fingerprint's chance of stealing its shine.

Now, the Portugieser has been a stalwart of IWC's lineup since 1998. Two vertically stacked subdials, a clean quarter-second flange scale, and that rather elegant contradiction of being dressed up while spoiling for a fight. It was, frankly, already rather good. But much like our aforementioned Gotham philanthropist, it turns out the whole thing is considerably more compelling after a wardrobe overhaul in black.

The secret weapon? Ceratanium. No, that's not a planet Superman forgot to mention — it's IWC's proprietary titanium alloy, fired at kiln temperatures until it develops a surface so hard it laughs in the face of scratches. The lightness of titanium, the scratch resistance of ceramic, and the brooding aesthetic of a man who's clearly been through some things. The case, crown, and pushers are all crafted from the stuff. It photographs so well it practically has its own publicist.

The dial is black. The hands? Black. The appliques, Arabic numerals, indices? All present, all accounted for, all rendered in that beautifully subtle raised texture that dares you to look more closely. Christian Knoop, IWC's Creative Director, noted the design strips everything back to silhouette — ensuring nothing distracts from the Portugieser's architecture. Which is another way of saying: the bones are so good, they don't need dressing up. They just need dressing down. Completely.

A black rubber strap with a square-pattern finish rounds out what is, in totality, a watch that could have climbed out of a very expensive comic panel.

Inside, IWC's manufacture 69355 calibre keeps the operation ticking. A proper column-wheel chronograph movement, which is the horological equivalent of doing things properly and not apologising for it. The column-wheel delivers that satisfying, snappy click through the pushers that separates the gents who know from those still impressed by quartz. An automatic double-pawl winding system provides 46 hours of power reserve, giving you roughly two days before even this Dark Knight needs a rest.

Pricing hasn't been formally confirmed, but given the standard Portugieser Chronograph hovers around the £6,500 mark, expect the Ceratanium edition to arrive with a premium commensurate with its ambition — and its material. You're not just paying for a watch; you're paying for one that will still look immaculate when your hair has long since turned grey.

Is it subtle? Extraordinarily so and yet impossible to ignore. Much like a caped figure perched on a Gotham rooftop, the Portugieser Ceratanium achieves that rarefied trick of disappearing into darkness while commanding every room it enters.

Only 1,500 will exist. The Bat-signal has officially been lit.

 

Ref. IW371631 | 41mm Ceratanium | Calibre 69355 | 46hr Power Reserve | Black rubber strap | Limited to 1,500 pieces

About the Author

Victor Goh

Watch & Features Editor

With a wrist perpetually graced by precision and a gaze fixed on horological haute couture, Victor Goh curates timepieces the way a sommelier selects vintage wine - bold, refined, and never predictable. His editorial instincts are as sharp as the crease on his pinstripe trousers, ensuring every GC watch feature ticks with class, clarity, and character.

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