IWC Portofino

Kurt Klaus belongs on watchmaking Mount Rushmore –– period.

Klaus is an institution in the world of watchmaking, developing many mechanical works of art, most notably inventing IWC’s autonomous perpetual calendar. 

He also believed that given its absolute beauty and significance to the brand, the IWC Calibre 9521 pocket watch movement belonged inside of a wristwatch. As a result, the Portofino line was born, and its distinct profile, being a 46mm dress watch in the early 1980s, made it unlike anything the industry has ever seen.

This particular piece, a IWC Reference IW5251, features an expansive 46mm 18k yellow gold case with a gold winding crown. The white dial features printed ‘Roman’ indices, two recessed sub-registers, one serving as the moon phase display through a crescent aperture, and the other a small seconds display, as well as a matching ‘Breguet’ handset. Like the sapphire crystal sitting atop the dial, the same goes for the exhibition caseback giving way to the IWC Calibre 9521 manual winding pocket watch movement.

Paired with a gray ‘pebble’ leather strap and a signed gold pin buckle, this IWC Reference IW5251 is ready to fill the dress watch void in any collection.

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 inspiration for a robust line of pilot’s watches still being produced today – easily identifiable by their clean, uncluttered dials, robust cases, and outstanding quality.

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 one-year mechanical warranty from the date of purchase.

International Buyers

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

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.