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IWC Portugieser Automatic 40 Steel Silver Dial Leather Strap IW358303

IWC Portugieser Automatic 40 Steel Silver Dial Leather Strap IW358303 IWC Portugieser Automatic 40 Steel Silver Dial…

Reference IW358303

Full watch configuration

IWC Portugieser Automatic 40 Steel Silver Dial Leather Strap IW358303

$7,110.00

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 40 Steel Silver Dial Leather Strap IW358303

IWC Portugieser Automatic 40 Steel Silver Dial Leather Strap IW358303

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IWC Portugieser Automatic 40 Steel Silver Dial Leather Strap IW358303

Catalogue watch price: $7,110.00 USD

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The IWC Portugieser Automatic 40 reference IW358303 is a stainless steel dress watch presenting a silver dial with crisp white Arabic numerals and powered by an automatic movement. The 40 mm steel case pairs elegantly with a fine alligator leather strap, delivering the understated sophistication that has defined the Portugieser line for decades.

Reference IW358303 distills the Portugieser's celebrated pocket-watch proportions and clean dial architecture into a modern, wearable 40 mm package that suits both formal occasions and refined everyday wear. Contact Bizak & Co. today to purchase this IWC Portugieser online at the best price and receive expert, personalized service.

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 is one of watchmaking's most enduring icons — a line born from a 1939 commission by Portuguese merchants who wanted a wristwatch with the precision and legibility of a marine chronometer. Over more than eight decades the Portugieser has remained faithful to its founding brief: a large, clean dial framed by a slender case, Arabic numerals rendered with typographic clarity, and a movement chosen for accuracy above all else. Reference IW358303 carries every element of that heritage forward in a contemporary 40 mm format that flatters a wide range of wrist sizes without sacrificing the collection's signature presence.

The 40 mm stainless steel case of the IW358303 strikes the ideal balance between the Portugieser's historically generous proportions and modern wearability. The polished and brushed steel surfaces interact beautifully with light, underscoring the watch's position as a refined dress piece. The stainless steel bezel is slim and unadorned, directing all visual attention toward the dial — exactly as the original designers intended.

The silver dial with white Arabic numerals is perhaps the most definitive expression of the Portugieser aesthetic. Large, bold hour markers paired with slender baton hands create a dial that can be read at a glance while remaining unmistakably elegant. The restrained layout, free of unnecessary sub-dials or complications on the main chapter ring, gives the IW358303 a timeless quality that trends cannot diminish. It is the kind of dial that photographs beautifully and looks even better in person.

Powering the IW358303 is an automatic movement, continuing the Portugieser tradition of pairing a refined exterior with a dependable, self-winding caliber. The automatic winding mechanism ensures the watch stays ready for wear without the need for manual intervention, making it as practical as it is beautiful. IWC's exacting manufacturing standards mean that every movement leaving Schaffhausen is regulated to tight tolerances, giving owners confidence in long-term precision.

The alligator leather strap completes the ensemble with a material whose fine scale texture and supple feel have been synonymous with luxury watchmaking for well over a century. It sits comfortably on the wrist, develops a pleasing patina with wear, and reinforces the IW358303's identity as a watch equally at home on a boardroom wrist or at a black-tie event. The combination of stainless steel hardware and fine leather gives the watch a versatility that pure metal-bracelet pieces often cannot match.

Bizak & Co. offers the IWC Portugieser Automatic 40 IW358303 at the best price, backed by the personalized expertise that only a dedicated luxury watch specialist can provide. Whether you are adding a cornerstone dress watch to a growing collection or seeking the perfect single timepiece to carry you through life's most important moments, the IW358303 represents extraordinary value. Browse our listing at bizakandco.com or reach out directly — our team is ready to answer every question and ensure your purchase is seamless from first inquiry to delivery.

Technical Details
Reference
IW358303
Model
Portugieser
Movement
Automatic
Case material
Stainless Steel
Bracelet material
Leather
Dial
Silver with white Arabic numerals
Case size
40mm
FAQ

1. What makes the IWC Portugieser IW358303 special?
The IW358303 captures the full heritage of the Portugieser line — a design tradition stretching back to 1939 — in a versatile 40 mm case that suits modern wrists without compromising the collection's iconic aesthetic. Its silver Arabic dial, slim steel bezel, and alligator leather strap combine to produce a watch that is simultaneously a piece of horological history and a refined daily companion.

2. What movement powers the IWC Portugieser IW358303?
The IW358303 is driven by an automatic movement, meaning it winds itself through the natural motion of the wearer's wrist via a rotor mechanism. This self-winding complication is a hallmark of fine Swiss watchmaking and ensures reliable performance without requiring daily hand-winding.

3. What is the case size of the IWC Portugieser IW358303?
The reference IW358303 features a 40 mm stainless steel case, placing it at the sweet spot between the Portugieser's traditionally larger proportions and a size that works comfortably on a broad range of wrist sizes. The slim bezel maximizes dial presence relative to overall case diameter.

4. Is the IWC Portugieser IW358303 suitable for everyday wear?
Yes — while the Portugieser IW358303 reads as a dress watch thanks to its clean silver dial and alligator leather strap, the automatic movement and robust stainless steel case make it durable enough for regular wear. It transitions seamlessly from business attire to formal evening dress, making it an excellent single-watch choice for discerning buyers.

5. What are the dial and strap materials on the IW358303?
The dial is finished in silver and features white Arabic numerals, delivering the high-contrast legibility the Portugieser line is celebrated for. The strap is crafted from alligator leather, a premium material prized for its distinctive scale texture, suppleness, and longevity when properly maintained.

6. Is the IWC Portugieser IW358303 a good buy, and how can I purchase it from Bizak & Co.?
The IW358303 is widely regarded as one of the most complete expressions of the Portugieser identity — strong heritage, timeless design, and automatic convenience — making it a sound long-term investment in both style and horological quality. You can buy it at the best price directly through bizakandco.com or by contacting the Bizak & Co. team for personalized assistance.

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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.

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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