IWC Big Pilot's Watch Annual Calendar Spitfire

The annual calendar is truly a technological marvel.

While it plays second fiddle to the perpetual calendar in the minds of most collectors, the reality is that the construction of this calendar mechanism — which generally requires adjusting only once per year, at the end of February — is equally challenging, and in some cases, requires even more components.

This particular annual calendar is special: Part of IWC’s Big Pilot collection, it’s first and foremost an aviator’s watch, but nonetheless incorporates a complex, in-house movement to display the time, day, date, and month. Pretty darn cool, if you ask us!

A Reference IW502702 dating to the 2020s, it’s housed in a 46mm stainless steel case with a sapphire crystal, a signed ‘onion’ crown, and a polished bezel. It features a luminous sunburst grey dial with printed white Arabic indices, a matching handset, month, day, and date apertures at 12:00, a sub-seconds dial at 9:00, and an 8-day power reserve indicator at 3:00.

Powered by the automatic, in-house IWC Calibre 52850 visible via an exhibition caseback, it comes paired to a brown leather strap with a signed, stainless steel deployant clasp. What’s more, the watch is in excellent condition and includes its factory goodies.

We know — your phone can give you all the information that this sophisticated IWC displays on its dial, and for much less financial outlay. But that’s not why you’re here on Analog/Shift, is it?

Get this one on your wrist and you’ll see what we mean!

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.