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IWC Portofino Automatic Moon Phase Steel 37.1mm Silver Plated Diamond Dial IW659601 - BRAND NEW

IWC Portofino Automatic Moon Phase Steel 37.1mm Silver Plated Diamond Dial IW659601 - BRAND NEW IWC Portofino Automatic Moon Phase Steel 37.1mm…

Reference IW659601

Full watch configuration

IWC Portofino Automatic Moon Phase Steel 37.1mm Silver Plated Diamond Dial IW659601 - BRAND NEW

$12,815.00
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 Portofino Automatic Moon Phase Steel 37.1mm Silver Plated Diamond Dial IW659601 - BRAND NEW

IWC Portofino Automatic Moon Phase Steel 37.1mm Silver Plated Diamond Dial IW659601 - BRAND NEW

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IWC Portofino Automatic Moon Phase Steel 37.1mm Silver Plated Diamond Dial IW659601 - BRAND NEW

Catalogue watch price: $12,815.00 USD

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The IWC Portofino Automatic Moon Phase IW659601 is a brand-new 37.1mm stainless steel dress watch featuring a silver plated dial with Roman numeral and index hour markers, a diamond-set bezel, and an elegant moon phase complication. Worn on a refined leather strap, this reference pairs classical proportions with a sophisticated celestial display that elevates it firmly into luxury territory.

Reference IW659601 stands out for its rare combination of a diamond bezel and a moon phase on a wearable 37.1mm case, making it as versatile as it is distinctive. Contact Bizak & Co. today to purchase this brand-new IWC Portofino or to learn more about our current inventory and pricing.

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

Buy this Portofino, 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 Portofino collection has long been regarded as one of the most graceful expressions of Swiss watchmaking, drawing its aesthetic inspiration from the sun-drenched harbors of the Italian Riviera. Since the line's introduction, the Portofino has embodied a philosophy of understated elegance: clean dials, slim profiles, and restrained ornamentation that allows the movement and craftsmanship to speak for themselves. Reference IW659601 carries that tradition forward while adding a handful of luxurious details that make it genuinely special among dress watches for sale today.

The 37.1mm stainless steel case is an ideal size for the Portofino family, sitting comfortably on a wide range of wrists without the imposing presence of a sports watch. The polished case surfaces catch light beautifully, and at this diameter the watch transitions effortlessly from a business setting to a formal evening occasion. The brand-new condition means every surface, crown, and lug edge is crisp and unmarked, exactly as it left Schaffhausen.

The silver plated dial is finished with a combination of Roman numeral and index hour markers, a hallmark of the Portofino's classical identity. The silver tone creates depth and warmth while providing ideal contrast for the applied indices. Most notably, the moon phase complication sits gracefully within the dial layout, its celestial disc adding a poetic dimension that has made moon phase watches among the most coveted complications in horology.

Circling the dial is a diamond-set bezel that transforms this reference from a restrained dress watch into a statement of luxury. The diamonds are precisely set to catch ambient light and add sparkle without overwhelming the dial's classical composition. Paired with a supple leather strap, the overall package is one of rare refinement — formal enough for a black-tie evening yet wearable enough for daily professional life. For buyers searching for a diamond bezel IWC Portofino for sale, IW659601 is a definitive choice.

The automatic movement within IW659601 drives both the timekeeping and the moon phase display, reflecting IWC's longstanding commitment to in-house or finely sourced mechanical watchmaking. Automatic winding means the watch stays powered through natural wrist motion, keeping the moon phase synchronized without manual intervention — a practical luxury that underscores how thoughtfully this reference is engineered.

Bizak & Co. offers this brand-new IWC Portofino IW659601 with the assurance of an authorized and trusted luxury watch dealer. Whether you are adding a moon phase complication to your collection for the first time or seeking a refined diamond bezel dress watch as an investment or gift, this reference delivers exceptional value. Contact us or buy online at bizakandco.com to inquire about availability, pricing, and secure shipping.

Technical Details
Reference
IW659601
Model
Portofino
Movement
Automatic
Case material
Stainless Steel
Bracelet material
Leather
Dial
Silver plated with index and Roman numeral hour markers
Case size
37mm
Requested condition
Brand New
FAQ

1. What makes the IWC Portofino IW659601 special?
Reference IW659601 combines three distinctive elements rarely found together at this price tier: a moon phase complication, a diamond-set bezel, and a classically proportioned 37.1mm stainless steel case. The silver plated dial with Roman numeral and index hour markers adds a timeless elegance that sets it apart from more utilitarian dress watches.

2. What movement powers the IWC Portofino IW659601?
The IW659601 is driven by an automatic mechanical movement that provides both reliable timekeeping and a moon phase complication. The self-winding rotor keeps the watch powered through everyday wrist motion, eliminating the need for manual winding under normal wear.

3. What is the case size of the IWC Portofino IW659601?
The IW659601 features a 37.1mm stainless steel case, a size that sits in the sweet spot between a delicate dress watch and a fully wearable everyday timepiece. It suits a variety of wrist sizes and pairs naturally with both casual and formal attire.

4. Is the IWC Portofino IW659601 suitable for everyday wear?
Yes — while the diamond bezel and moon phase complication give IW659601 a distinctly dressy character, the automatic movement, stainless steel case, and leather strap make it practical for regular wear. It transitions naturally from professional daytime settings to formal evening occasions.

5. What dial and bezel does the IW659601 feature?
The dial is silver plated and features a blend of Roman numeral and index hour markers, giving it a classical dress-watch identity. The bezel is set with diamonds, adding a layer of luxury and brilliance that elevates this Portofino reference above standard steel variants.

6. How can I buy the IWC Portofino IW659601 from Bizak & Co.?
You can purchase this brand-new IWC Portofino IW659601 directly through bizakandco.com or by contacting our team for personalized assistance. Bizak & Co. is a trusted luxury watch dealer offering competitive pricing, secure shipping, and expert guidance on every timepiece we sell.

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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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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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