IWC Portugieser Hand-Wound Eight Days 75th Anniversary

Regular price
$8,950
Regular price
Sale price
$8,950
REF IW510205
Manual-winding
43 MM
– Show less
SKU AS12181
Article Number 40970139
ref IW510205
case size 43 MM
movement Manual-winding
approximate age 2010s
dial color Black
material Stainless Steel
style Sport
category Pre-Owned Contemporary
bracelet Leather
lug width 22 MM
Includes black alligator leather strap with IWC signed stainless steel pin buckle. also includes the signed warranty card dated 2015.
overall condition excellent condition overall. case shows light wear. dial and matching handset are as-new.
REF IW510205
Manual-winding
43 MM
– Show less
SKU AS12181
Article Number 40970139
ref IW510205
case size 43 MM
movement Manual-winding
approximate age 2010s
dial color Black
material Stainless Steel
style Sport
category Pre-Owned Contemporary
bracelet Leather
lug width 22 MM
Includes black alligator leather strap with IWC signed stainless steel pin buckle. also includes the signed warranty card dated 2015.
overall condition excellent condition overall. case shows light wear. dial and matching handset are as-new.

Why We Love it

The Portugieser exists because someone asked IWC to do the impossible.

In the late 1930s, two clients from Portugal approached IWC Schaffhausen with a challenge: build a wristwatch with the accuracy of a marine chronometer. At the time, that meant one thing—scale. IWC’s solution was to house a pocket-watch movement inside a wristwatch case, creating something radically oversized for its time. When the original debuted in 1939, its proportions were shocking, its clarity unmatched. It didn’t follow the rules—it quietly rewrote them.

Fast forward to 2015, and the Reference 5102 arrives as a 75th anniversary tribute to that original idea. At 43mm, it remains faithful to the Portugieser’s defining trait: presence with purpose. But what keeps it from feeling oversized is the balance—the wide, open dial, the slim bezel, the long, elegant lugs.

The graphic black dial is particularly striking. Printed 'Arabic' numerals anchor the design, while a subsidiary seconds at 6 o’clock reinforces the symmetry. Flip it over, and the real story reveals itself: the hand-wound Caliber 59215, visible through an exhibition caseback, delivering a remarkable 8-day power reserve. It’s mechanical watchmaking at its most satisfying—wind it once, and let it breathe for the better part of a week.

Limited to just 750 pieces in stainless steel, this is a Portugieser that feels both reverent and modern—true to its origins, but entirely at ease today. Sometimes the boldest move is simply making something bigger—and getting everything else exactly right.

Brand Story

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When an American watchmaker named Florentine Ariosto Jones arrived in Schaffhausen, Switzerland in 1868, he found a city almost frozen in time. Though the Industrial Revolution had swept through America, in Switzerland the situation was very different. Watchmakers still plied their trades by their own firesides, as they had done for centuries. But Jones had in mind something different — an American-style factory where the watches would be designed and assembled in keeping with the old Swiss ways. His methods caught on, and soon there were 196 people employed at his factory.

Though the International Watch Company was founded 35 years before Wilbur and Orville Wright’s first flight, the association between IWC and aviation began just as the age of flight dawned: A pocket watch made by the company in the 1890s found its way into the pocket of one Robert Albert Lotter, a pilot in the German Luftwaffe who served with distinction during the First World War.

Two decades later, in 1936, IWC released a watch that set the standard for pilot’s watch design, the Spezialuhr für Flieger, or Special Pilot's Watch. Another would follow in 1940, the Beobachtungs-ühren (“observation watch”), which spawned an entire model line in IWC’s current collection called the Big Pilot. However, despite the Big Pilot’s current popularity, it was the Special Pilot’s Watch that would lay the cornerstone for IWC’s most iconic line: the Mark series of pilot’s watches.

IWC released the Mark XI in 1948 according to specifications set forth by the British Ministry of Defense. These watches had to be legible, compact, and able to withstand exposure to the magnetic fields emitted by instruments in an airplane’s cockpit. The Mark XI, therefore, had a black dial with large luminous Arabic numbers, while its incredibly robust Calibre 89 movement was encased in an iron cage. (Later, in the 1950s and 1960s, IWC would produce myriad dress watches in steel and gold based upon the Calibre 89 movement, which remain relatively plentiful on the vintage market.)

The Mark XI served as the basis for design

A:S Guarantee

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Our Pledge

Analog:Shift stands behind the authenticity of our products in perpetuity.

Condition

Since our pieces are vintage or pre-owned, please expect wear & patina from usage and age. Please read each item description and examine all product images.

Warranty

We back each Analog:Shift vintage timepiece with a two-year mechanical warranty from the date of purchase.

International Buyers

Please contact us prior to purchase for additional details on shipping and payment options.

Shipping & Returns

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All of our watches include complementary insured shipping within the 50 states.

Most of our products are on hand and will ship directly from our headquarters in New York City. In some cases, watches will be shipped directly from one of our authorized partners.

We generally ship our products via FedEx, fully insured, within 5 business days of purchase. An adult signature is required for receipt of all packages for insurance purposes. Expedited shipping is available at an additional cost. We are also happy to hand deliver your purchase in Manhattan or you may pick it up at our showroom.

Returns must be sent overnight or by priority international delivery, fully insured and paid for by the customer. A restocking fee may apply. Watches must be returned in the same condition as initially shipped.

We welcome international buyers, please contact us prior to purchase for additional details on shipping and payment options.

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IWC Portugieser Hand-Wound Eight Days 75th Anniversary

IWC Portugieser Hand-Wound Eight Days 75th Anniversary

Regular price
$8,950
Regular price
Sale price
$8,950
IWC Portugieser Hand-Wound Eight Days 75th Anniversary
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