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IWC Portugieser Automatic 18-Carat Gold 40.4mm Black Dial IW358401 - BRAND NEW

IWC Portugieser Automatic 18-Carat Gold 40.4mm Black Dial IW358401 - BRAND NEW IWC Portugieser Automatic 18-Carat Gold 40.4mm Black…

Reference IW358401

Full watch configuration

IWC Portugieser Automatic 18-Carat Gold 40.4mm Black Dial IW358401 - BRAND NEW

$20,700.00
Requested condition
Brand New

By IWC

Sourced to order. We confirm the watch, condition and final price before purchase. Reference images shown.

Eligible watches: 90-day returns for store credit only. Brand-new watches and other exclusions are final sale. Return terms.

IWC Portugieser Automatic 18-Carat Gold 40.4mm Black Dial IW358401 - BRAND NEW

IWC Portugieser Automatic 18-Carat Gold 40.4mm Black Dial IW358401 - BRAND NEW

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IWC Portugieser Automatic 18-Carat Gold 40.4mm Black Dial IW358401 - BRAND NEW

Catalogue watch price: $20,700.00 USD

Your $200 deposit is applied to the watch’s purchase price. It is refundable only if Bizak & Co. cannot fulfill your order.

Estimated remaining balance: $. Pay by bank wire or cryptocurrency after we confirm your watch and final invoice. Shipping and applicable taxes are additional.

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Watch shipping is paid with the final balance: $100 for U.S. overnight delivery or $500 internationally. Applicable taxes and import charges are additional.

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The IWC Portugieser Automatic IW358401 is a brand-new 40.4mm luxury dress watch crafted in 18-carat gold, featuring a striking black Arabic dial and a classic leather strap. This reference represents the Portugieser line's enduring commitment to legibility, proportion, and fine horology in precious metal.

The IW358401 stands apart with its refined gold case, bold Arabic numerals, and slim profile that transitions effortlessly from boardroom to black-tie occasions. Contact Bizak & Co. today to purchase this brand-new Portugieser IW358401 at the best price or browse our full IWC collection online.

Compare it across every Portugieser reference we carry, or browse the full IWC collection at Bizak & Co.

Buy this Portugieser, trade in your current watch, or sell us yours. Contact Bizak & Co. to make an offer or request a fair-market valuation.

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The IWC Portugieser Automatic IW358401 is one of the most coveted expressions in IWC's storied catalogue — a 40.4mm dress watch rendered in warm 18-carat gold that pays homage to the line's Portuguese nautical heritage. First introduced in 1993 as a modern revival of a bespoke 1939 commission, the Portugieser family has grown into an icon of restrained Swiss watchmaking, beloved for its clean dials, elongated lugs, and unwavering readability. This brand-new reference continues that tradition with uncompromising precision and elegance.

The dial of the IW358401 is finished in rich black, adorned with crisp Arabic numerals that trace their lineage directly to the original pocket-watch-inspired design. The high-contrast pairing of black against the warm glow of 18-carat gold creates an immediately arresting visual statement — one that is simultaneously timeless and contemporary. The slim gold bezel and uncluttered layout ensure the dial does all the talking, commanding attention without a single superfluous element.

Powering the IW358401 is an automatic movement, meaning the watch winds itself through the natural motion of the wearer's wrist, eliminating the need for daily manual winding. IWC automatic calibers are renowned within the industry for their long-term reliability, smooth rotor action, and precise timekeeping, making this reference as practical as it is beautiful. The movement's architecture is purpose-built for a lifetime of confident, everyday use.

The 40.4mm case diameter occupies a sweet spot in modern watchmaking — substantial enough to project quiet authority on the wrist, yet refined enough to slide comfortably beneath a French cuff. The 18-carat gold construction adds considerable heft and warmth to the wearing experience, giving the watch a presence that no stainless-steel alternative can fully replicate. A supple leather strap completes the ensemble, lending the IW358401 the relaxed, understated elegance expected of a top-tier Swiss dress watch.

Buying a brand-new IWC Portugieser IW358401 from Bizak & Co. means acquiring a watch in factory-fresh condition, fully unworn and ready for a lifetime of ownership. As a dedicated luxury watch dealer, Bizak & Co. offers competitive pricing, expert authentication, and a transparent purchasing experience whether you shop online at bizakandco.com or reach out directly.

Technical Details
Reference
IW358401
Model
Portugieser
Movement
Automatic
Case material
Yellow Gold
Bracelet material
Leather
Dial
Black Arabic dial
Case size
40mm
Requested condition
Brand New
FAQ

1. What makes the IWC Portugieser IW358401 special?
The IW358401 combines an 18-carat gold case with a bold black Arabic dial in IWC's iconic Portugieser design — a pairing that delivers both precious-metal luxury and outstanding legibility. Its 40.4mm proportions and heritage-inspired numerals make it one of the most distinctive dress watches in the IWC lineup.

2. What movement powers the IWC Portugieser IW358401?
The IW358401 is driven by an IWC automatic movement that winds itself through the motion of the wearer's wrist. Automatic calibers from IWC are well regarded for their reliability and accuracy, requiring no manual winding under normal daily wear.

3. What is the case size of the IWC Portugieser IW358401?
The IW358401 measures 40.4mm in diameter, placing it in a versatile size range that suits a wide variety of wrist sizes. It is large enough to make a confident statement while remaining elegant and comfortable beneath a dress shirt cuff.

4. Is the IWC Portugieser IW358401 suitable for everyday wear?
While its 18-carat gold case and dress-watch aesthetic make the IW358401 especially at home in formal and business settings, its automatic movement and durable leather strap mean it can certainly be worn regularly. It is best suited to wearers who appreciate refined, low-profile luxury over sport-oriented functionality.

5. What is the dial and case material of the IW358401?
The IW358401 features a black Arabic dial paired with an 18-carat gold case and matching gold bezel. This precious-metal and high-contrast dial combination gives the watch its distinctive, timeless character that distinguishes it from steel or two-tone alternatives.

6. How can I buy the IWC Portugieser IW358401 from Bizak & Co.?
You can purchase this brand-new IW358401 directly at bizakandco.com or by contacting the Bizak & Co. team for personalized assistance. Reserve this watch online with a $200 deposit.

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5 Years Warranty

Our five-year Bizak & Co. warranty covers manufacturing defects affecting mechanical operation under normal use, starting on delivery. It is separate from any remaining manufacturer warranty.

Exclusions include accidental damage, misuse, water damage, cosmetic damage, normal wear, loss and theft. Coverage and service availability for vintage or modified watches are confirmed in writing before purchase.

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90-Day Returns for Store Credit

Eligible watches may be returned within 90 days for store credit. Brand-new watches and other exclusions are final sale.

Read eligibility, condition requirements, and exclusions.

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Insured shipping

U.S. overnight shipping is $100; international shipping is $500. Dispatch takes 2–3 business days after your wire clears. International transit times vary. Shipping details.

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