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IWC Portofino Chronograph Steel 39mm White Dial IW391503 - BRAND NEW
  • IWC Portofino Chronograph Steel 39mm White Dial IW391503 - BRAND NEW
  • IWC Portofino Chronograph Steel 39mm White Dial IW391503 - BRAND NEW
IWC Portofino Chronograph Steel 39mm White Dial IW391503 - BRAND NEW

IWC Portofino Chronograph Steel 39mm White Dial IW391503 - BRAND NEW IWC Portofino Chronograph Steel 39mm White Dial…

Reference IW391503

Full watch configuration

IWC Portofino Chronograph Steel 39mm White Dial IW391503 - BRAND NEW

$8,010.00
Requested condition
Brand New

By IWC

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

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IWC Portofino Chronograph Steel 39mm White Dial IW391503 - BRAND NEW

IWC Portofino Chronograph Steel 39mm White Dial IW391503 - BRAND NEW

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IWC Portofino Chronograph Steel 39mm White Dial IW391503 - BRAND NEW

Catalogue watch price: $8,010.00 USD

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The IWC Portofino Chronograph IW391503 is a brand-new 39mm stainless steel dress chronograph featuring a clean white index dial and a stainless steel domed bezel — a refined combination that defines the Portofino line's understated elegance. Paired with a matching steel bracelet, this reference strikes a confident balance between sporting function and classic Italian-inspired style.

Reference IW391503 stands out for its slender 39mm case size, making it one of the more wearable chronographs in IWC's current lineup and an ideal choice for collectors who prefer a proportionate, versatile fit. Contact Bizak & Co. today to purchase this Portofino Chronograph at the best price or to learn more about our brand-new IWC inventory.

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

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The IWC Portofino collection draws its name and spirit from the famously picturesque Italian fishing village, and every watch in the line is designed to capture that sense of effortless, sun-drenched sophistication. Since IWC introduced the Portofino family, it has grown into one of the brand's most beloved dress-sport lines — prized for its architectural restraint, legible dials, and the kind of quiet confidence that pairs equally well with a linen blazer or a business suit. The IW391503 represents that tradition at its most refined.

At 39mm, the Portofino Chronograph IW391503 occupies a sweet spot that is increasingly rare among modern chronographs. Many of today's timing watches push well past 41 or 42mm, so IWC's commitment to the 39mm diameter is a deliberate nod to classical proportions and to wrists of every size. The stainless steel case is shaped to sit low on the wrist, and the domed bezel adds a subtle architectural flourish that references mid-century watchmaking without feeling retro.

The white index dial is the visual heart of this reference. White dials have long been associated with dress watchmaking — they read crisply in any light, age gracefully, and allow the applied index markers to catch the light with quiet drama. On the IW391503 the dial layout is balanced and legible, with the chronograph sub-registers arranged so as not to crowd the symmetry that the Portofino aesthetic demands. It is a dial that rewards a second look.

The stainless steel bracelet completes the package with integrated elegance, creating a cohesive, monochromatic look that feels contemporary yet timeless. A steel bracelet also adds versatility — it reads as polished enough for formal occasions yet robust enough for daily wear, which is precisely the kind of dual-purpose sensibility the Portofino Chronograph is built to deliver. Buying this reference on bracelet means you receive a complete, ready-to-wear package direct from new-old-stock.

Purchasing a brand-new IWC Portofino Chronograph IW391503 from Bizak & Co. means you benefit from our commitment to sourcing only authentic, carefully verified timepieces. As an experienced luxury watch dealer, Bizak & Co. offers competitive pricing, transparent provenance, and a knowledgeable team ready to answer every question — from movement details to delivery logistics. Reach out today to secure this Portofino Chronograph and experience the Bizak & Co. standard of service.
Technical Details
Reference
IW391503
Model
Portofino
Case material
Stainless Steel
Bracelet material
Stainless Steel
Dial
White with index markers
Case size
39mm
Requested condition
Brand New
FAQ

1. What makes the IWC Portofino Chronograph IW391503 special?
The IW391503 combines IWC's hallmark Portofino elegance with chronograph functionality in a refined 39mm stainless steel package. Its white index dial and domed bezel give it a distinctly dressy personality that sets it apart from sportier chronographs. The result is a timing watch that is equally at home in the boardroom or at a waterfront dinner.

2. What movement powers the IWC Portofino Chronograph IW391503?
The specific caliber details for this reference have not been confirmed in the available listing information. IWC is known for housing high-quality in-house and partner movements across the Portofino line. We recommend contacting Bizak & Co. directly for the most accurate and up-to-date movement specifications.

3. What is the case size of the IW391503?
The IWC Portofino Chronograph IW391503 features a 39mm stainless steel case. This diameter is notably more restrained than most contemporary chronographs, making it a popular choice for collectors who appreciate classical proportions. The domed bezel and low-profile case construction further enhance the elegant wrist presence.

4. Is the IWC Portofino Chronograph IW391503 suitable for everyday wear?
Yes — the stainless steel case and matching steel bracelet make the IW391503 a durable and practical daily companion. The Portofino Chronograph is designed to transition seamlessly between formal and casual settings, so it suits professionals who want one versatile watch for most occasions. Its 39mm size also means it wears comfortably under a shirt cuff.

5. What does the dial of the IW391503 look like?
The dial is white with applied index hour markers, delivering a clean and highly legible face that exemplifies the Portofino line's dressed-up aesthetic. The white ground contrasts beautifully with the steel case and bezel, creating a bright, light-catching composition. Chronograph sub-registers are integrated into the dial layout in keeping with the model's balanced design philosophy.

6. How can I buy the IWC Portofino Chronograph IW391503 and is it a good investment?
You can purchase this brand-new IW391503 directly from Bizak & Co. at bizakandco.com, where we offer it at the best price with full authenticity assurance. The Portofino Chronograph is a well-regarded reference from one of Switzerland's most storied manufacture houses, making it a sound choice for both wearing and long-term collection value. Contact our team today to confirm availability and complete your purchase.

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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.

Read the full warranty terms and service instructions. 

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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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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