Aero-Aesthetics: The Untold Story of the Aviation Watch

By Sam Fritsch

The aesthetics of enlisted men have been kicking off fashion crazes for centuries, often by way of civilian trendsetters. Consider Humphrey Bogart’s trench coat, Tom Cruise’s Ray Bans, Andy Warhol’s camouflage prints. Or, in the case of the pilot’s wristwatch, Charles Lindbergh and Professor Philip Weems.

The evolution of the aviation watch from a practical instrument to modern wardrobe staple is woven into “Time and Navigation,” on display at The Smithsonian National Air and Space Museum in Washington D.C. The exhibit explores how the intersection of time and navigation has changed and shaped our world over the last three centuries. It’s broken up into four sections: seagoing navigation, space navigation, satellite navigation, and air navigation. The latter is of particular interest, as it highlights the unique challenges associated with adapting techniques that worked at sea for use in the air.

Artifacts on show include early chronometers, sextants, and charts used by famous aviators. There’s also interwar flying gear and all types of radio equipment, plus the crystal oscillator of the 1920s, which electrically vibrated a crystal, measured its resonance, and gave the time down to the microsecond. But the real treasure is the 1930s-era Longines’ Lindbergh Hour Angle Watch — and the story behind it.

Navigation during the pioneering days of aviation was a struggle. Airplanes weren’t ideal places to do mathematical calculations: there was an open cockpit, pilots wore thick gloves, and the sky was often obscured, making it difficult to see the horizon. Also, the tools weren’t good. Accuracy suffered; pilots didn’t always end up where they thought they were going.

Roger Connor, curator of the “Time and Navigation” exhibition, says that on Charles Lindbergh’s famous 1927 flight from New York to Paris, he didn’t bring a radio or a sextant because they simply didn’t work very well. These tools were also heavy, and he’d rather carry extra fuel to accommodate for navigational errors. Incredibly, when Lindbergh became the first person to make a nonstop solo transatlantic flight, he did so using a compass and a clock.

Charles A. Lindbergh poses in front of Ryan NYP “Spirit of St. Louis outside a hangar in St. Louis, Missouri, May 11, 1927. Image provided by National Air and Space Museum, Smithsonian Institution.

But he was nicknamed “Lucky Lindy” for a reason: on the day of his historic trip, the net wind drift across the Atlantic was zero, ideal conditions for navigation. After he made headlines, other pilots thought the trip would be equally as easy; many were injured or killed trying to replicate similar flights. Soon, aviators realized the complexities of negotiating long-range flying.

“Lindbergh himself got lost a couple times (while flying) and finally the lightbulb goes on for him that he needs to figure out how to navigate, because no one else had figured out how to navigate well in an airplane,” explains Connor. “He started asking around and finally someone told him, ‘Oh, this P.V.H. Weems guy has been doing a lot of work on this problem and he’s got some pretty good ideas.’”

Celestial navigation innovator and instructor, P.V.H. Weems.
Image provided by National Air and Space Museum, Smithsonian Institution.

Philip Van Horn Weems, an Olympic wrestler and Annapolis graduate, was a decorated veteran of both World Wars and the Godfather of modern avigation. As a US naval officer in the late 1920s and early 1930s, he’d pursued new ways of approaching navigation, ultimately creating a new standard for tabulating Greenwich hour angle to improve accuracy, a technique that the military would use for another three decades. This development earned him a position teaching at the Naval Academy at the dawn of precision flying and, later, early space travel. In 1953, Weems was awarded the Magellanic Premium for his contributions to navigation, an honor that has been given only 33 times since its establishment in 1786.

But as far as his developments have gotten him, Weems had a humble beginning: he started with a simple Waltham torpedo boat wristwatch, which was a standard early 20th century military chronometer. He added a hacking feature to it, meaning he could continually adjust it to the second. This new “hack” watch allowed airplane navigators to set the time on their watches using radio signals, instead of setting their time in port like they did with ships.

“Why is this a big deal? Well, if you can’t adjust it to the second, you might be up to thirty seconds off the minute, even if it’s technically set accurately,” Connor explains. “And that type of inaccuracy could mean you’re flying a few miles off of the equator, so it’s a big error. The ability to set the watch to the second really simplifies the process of calculation, and that’s what it’s all about in the airplane: you have to do it quickly and easily.”

After the two men met in 1928, Weems gave Lindbergh one of these second-setting watches and taught him how to use it. Soon after, the Navy assigned Weems to teach Lindbergh celestial navigation, which differs from traditional navigation because the movement of the stars is slightly different than that of the sun. The two came up with the idea of a watch that measured celestial time, so that airplane navigators didn’t have to work out corrections mathematically. Instead, they’d just check the time on their wrist.

The Lindbergh-Longines Hour-Angle Watch wristwatch, marketed in the mid-1930s, eliminated a simple but troublesome calculation in celestial computations.
Image by Eric Long, provided by National Air and Space Museum, Smithsonian Institution.

Lindbergh and Weems went to Longines with the idea of creating the Hour Angle Watch, which used Weems’s method of calculating the celestial fix. The bezel and dial of the watch would “allow navigators to read off the hour angle of a celestial object at Greenwich, eliminating a simple but troublesome calculation.” Longines was ecstatic at the idea of making a Lindbergh watch, and aggressively marketed the collection in the mid-1930s. Because of Lindbergh’s fame, the watches became wildly popular, and not just among aviators. In doing so, the duo became unlikely sartorial heroes, making the flight-ready aesthetic into a salable item, helping blaze a trail for decades of high-style, aero-inspired timepieces.

“The aviation watch became a fashion accessory and it’s funny because, going back to Lindbergh and Weems, they’re the ones who actually kind of created that fashion craze,” Connor explains. “The practical watches had big knobs so you could adjust them with those thick pilot gloves on, but obviously they were shrunk down for the fashion watch. It wasn’t really for aviators anymore, it was really so you could walk around and say, ‘Oh yeah, I have a Lindbergh watch.’”

Hours, Minutes, Centuries: 150 Years of IWC

One hundred and fifty years.

Not much of a lifespan for a university, a European town, or a Sierra redwood. Five minutes and a few dollars spent on eBay can put you in possession of a coin or a book that was already ancient in 1868, the year Florentine Aristo Jones traveled from Boston to Schaffhausen to found the International Watch Company. If you deal in matters cosmological or geological, a century and a half barely merits mention. It is an eyeblink.

In matters horological, however—in this new era of watchmaking where opportunistic investors wrap whole-cloth start-ups in tissue-thin histories of dubious or borrowed provenance, where long-dead marques and models are hydraulically fracked from the past to adorn commodity movements and generic designs—IWC’s claim to 150 years of continuous production feels truly rare, deliciously enviable. All the more so for its aristocratic approach to that history—how the company has always refused to be handcuffed by its own weighty tradition.

Consider, for instance, that iconic trio of 1970s Gerald Genta sports-watch designs. Audemars Piguet has tirelessly extended the Royal Oak to a multitude of variants, while Patek Philippe has carefully conserved the core Nautilus concept across four decades. IWC, on the other hand, simply abandoned its Genta-designed Ingenieur this year, like a child tossing away an unwanted toy. And why not? The firm had an older design, from 1955, that it felt deserved a reboot into the new “Ingy.” Such behavior is the hallmark of pur sang, whether in Frankish nobility or watchmaking royalty.

Florentine Ariosto Jones (1841–1916), American engineer, watchmaker, and IWC founder.

Yet there has always been an iconoclastic streak in IWC’s history, starting from the moment of its birth. F.A. Jones was no Swiss burgher; he was New Hampshire born and bred, and his eyes were firmly fixed on the American market. Thus, “International Watch Company,” to emphasize the advantages of a Swiss product over the domestic competition. It did not entirely pan out, and Mr. Jones was to leave the firm after seven years. By 1884, IWC was Swiss in both management and ownership, headed by Johannes Rauschenbach-Schenk. He was fascinated by the recently unveiled Pallweber system.

When Douglas Adams wrote in The Hitchhiker’s Guide to the Galaxy that humans were “so amazingly primitive that they still think digital watches are a pretty neat idea,” he likely didn’t know about Josef Pallweber’s innovation, which predated Hamilton’s Pulsar P1 of 1972 by nearly 90 years but was, strictly speaking, a true digital timepiece. IWC would go on to produce approximately 20,000 Pallweber-system pocket watches, which used jumping-minute and jumping-hour complications, along with numbered discs to power hour and minute displays, much like the date indicator on a contemporary mechanical watch.

Early IWC Pallweber pocket watches. 

The decision to terminate production of the Pallwebers put the digital watch into a Rip-Van-Winkle-like slumber until the beginning of the Space Age. Still, IWC continued to innovate as the tide turned from pocket watch to wristwatch after World War I. The Special Pilot’s Watch, Reference IW436, arrived in 1936 to serve the needs of a new class of adventurer. Antimagnetic and proofed against the freezing temperatures encountered by open-cockpit aviators, the IW436 established aesthetic and functional directions for pilots’ watches that continue to this day.

One of the brand’s few stubborn loyalties—to its own hand-wound movements—prevented IWC from taking advantage of John Harwood’s “Perpetual” patent for self-winding mechanical watches. But in 1950, technical director Albert Pellaton designed and patented a unique bidirectional winding movement that would first appear in 1955’s Ingenieur. It used a soft-iron case to deflect magnetic fields, and can be considered an early example of what is now called a “tool watch.”

The original IWC Ingenieur, circa 1955.

The quartz era brought a variety of conventional and “mecha-quartz” hybrid movements in watches that might seem eccentric to modern eyes, but should start enjoying a well-deserved renaissance of regard. Similarly, a partnership with Porsche Design resulted in a series of highly regarded sport watches, including the wonderfully campy “Compass” collaboration. Here, the dial and movement could be flipped up to reveal—you guessed it—a liquid-filled compass. The entire watch was made from aluminum, so as to prevent interference with the directional needle.

A more significant product was the Titan chronograph, the first wristwatch to use a full-titanium case. IWC expended substantial effort addressing the challenges of machining, offering an unprecedented combination of lightness, durability, and corrosion resistance. The follow-up effort, 1982’s Ocean, could be used at depths of up to 2,000 meters and was available in a completely antimagnetic version for military divers whose jobs could take them close to magnetic mines.

IWC x Porsche Design Titan chronograph.

Renewed interest in Swiss mechanical watches soon found IWC well-positioned, a notion which perhaps did not occur immediately to the nouveau riche, but which nonetheless offered impeccable historical credentials, producing a variety of sports and luxury pieces. A diverse series of cobranding efforts, with entries ranging from the Fondation Antoine de Saint-Exupéry to the Mercedes-AMG Formula One team, has kept IWC firmly in the public eye; radical designs of the Da Vinci and Ingenieur lines have demonstrated a commitment to keeping its core models fresh.

But the main attraction is the mechanical-digital display for hours and minutes. Whereas the unusual jumping mechanisms of the 1884 original required frequent winding by the standards of the era, the new tribute rectifies that issue by decoupling the minute wheel for 59 of every 60 seconds, reducing drag and allowing for a 60-hour reserve. The unique manufacture movement requires 50 jewels and operates at an impressive 28,800 vph. As one would expect nowadays, the dial is a relatively large 45 mm. The caseback is sapphire, all the better to allow one marvel at the complications within.

The IWC Tribute To Pallweber Edition “150 Years'”

In that spirit, IWC has chosen to mark its 150th anniversary by issuing no fewer than 27 commemorative editions, including tourbillons, perpetual calendars, and a new movement with ceramic internals. The spotlight will, however, undoubtedly shine brightest on an all-new effort that reaches back to that 1884 Pallweber design for inspiration. The IWC Tribute to Pallweber Edition “150 Years” (Ref. IW505002) is a very different take on the modern digital watch, using an 18-karat red-gold case, a white dial with a lacquered finish, white display discs, and a blued seconds hand.

Priced at $36,000 and limited to a total production of just 250 examples, the Pallweber tribute is not meant for general consumption. Nor does it presage a new era of mechanical-digital watches. (Although such a development would be a welcome change from the current focus on hypertrophic case-size and increasingly recherché combinations of complications.) No, it’s better to think of this latest piece as a statement, a celebration of what IWC has always done best, a testament to its singular position in the industry: that tireless champion of innovation, free to alternately disregard and venerate its history, both deeply rooted in tradition and fearlessly focused on the future.

Eternally Tank

Alain Delon Cartier Tank

The timeless Cartier Tank celebrates its first centennial.


By Sara James Mnookin

“I don’t wear a Tank to tell the time . . . I wear a Tank because it’s the watch to wear.” – Andy Warhol

It was sleeker than the Santos, evoking an aerial view of the tank, with elongated brancards on either side of a square compact case—a design innovation that also solved a nagging dilemma in those early days of the wristwatch: how to join a flat band to a round face. “The majority of men’s wristwatches during World War I were converted pocket watches,” says Nate Borgelt, international senior specialist at Sotheby’s. “The Tank, a design directly based on a machine for war, was masculine, made from the ground up to be worn on the wrist.”

According to Cartier lore, the first Tank was offered to General John Pershing, commander of the American Expeditionary Forces (who would later rise to garner an unofficial six-star status as General of the Armies). Soon thereafter, Cartier placed six pieces in its stores, which sold out in record time.

General John J. Pershing.

“It was really the first high-profile celebrity watch,” says Marion Fasel, founder and editorial director of the fine jewelry blog, The Adventurine, who points to the precise moment that cemented the Tank’s iconic status, when “silent-film star Rudolph Valentino insisted on wearing it in The Son of the Sheik.” Dubiously dressed in a turban and a wristwatch, Valentino may have made little narrative sense on screen, but he changed sartorial history, inspiring men from London to L.A. to shelve their pocket watches for good.

“Stars have been wearing the style ever since,” Fasel adds. Its strong lines and formidable military credentials have indeed drawn a platoon of famous admirers—among them, Gary Cooper, Cary Grant, Marcello Mastroianni, Alain Delon, Frank Sinatra, and Warren Beatty. Truman Capote claimed to own no fewer than eight Tanks—enough to pull one off his wrist and give it to a passing journalist whose style he found lacking. Capote’s friend Andy Warhol never even wound his, famously remarking, “I don’t wear a Tank watch to tell the time… I wear a Tank watch because it’s the watch to wear.” Yves Saint Laurent evidently agreed.

So did many women. Greta Garbo, trailblazing androgyny, naturally wanted a Tank on her wrist. Sex bombs Brigitte Bardot and Elizabeth Taylor used it almost as a counterweight, to cool off their curves. Ingrid Bergman and Grace Kelly ensured the style became de rigueur for willowy WASPs throughout Europe and the U.S., while Jacqueline Kennedy Onassis carried the Tank trend well into the unisex-obsessed 1970s.

One of Jackie’s beloved Tanks, a gift from her brother-in-law, Prince Stanislaw Radziwill, sold for a staggering $379,500 at Christie’s in June. The anonymous buyer was said to be Kim Kardashian—a plausible theory, given how recently  the reality star had been robbed at gunpoint in Paris.

Alain Delon Cartier Tank
Actor Alain Delon, with director Jean-Pierre Melville, on the set of 1972’s Un Flic.

It seems that, for many women, the Tank has become a kind of armor. Recall Princess Diana’s frequent appearances in her black-strapped Tank L.C. or yellow gold Tank Française in the years after her painful split from Prince Charles.

“It is neither too masculine nor too feminine,” Fasel says. “The design is really the golden mean.”

Such wide reach is hardly mere happenstance. The Tank not only pioneered watch design, but also its marketing, as one of the first styles to be sold by size rather than sex. Freed from traditional boundaries, many men found they preferred the trimmer lines of the smaller case, and a few ladies elected to size up. The Tank opened up new ground between genders, carving out space for vanguards to challenge fashion (and thus societal) norms—and all long before most of the world was ready to grapple with the concept of that sort of fluidity.

“If all tanks were made by Cartier, we’d have the time to live in peace.” – Jean-Charles de Castelbajac

The De Stijl movement, also born in 1917, called for simplicity in design, isolating elements down to form and color. Cartier’s Tank thus has its own specific vernacular—a crisp roman-numeral dial, blue-steel hands, and a sapphire cabochon crown, although the house has never shied away from tinkering with this formula. “The style has a very recognizable language, modified to keep it relevant and new,” Borgelt says. By changing small aspects—size, angles, the way the crown is elongated or shortened, the colors of the stones and cabochons—Cartier prevented the classic from ever feeling quite done.

In 1921 alone, the face was stretched into the Tank Cintrée, which followed the natural curvature of the wrist, and the case lines were made to overlap the brancards for the luxe Tank Chinoise. An extra-flat version, the Tank Normale, arrived in 1964, and the bolder, sturdier Américaine, in 1988. Bucking the gritty minimalism of the ’90s, the Tank Française flashed its shiny steel and gold bracelets, starting in 1996.

Today, Borgelt says the most collectible Tanks tend to be “any limited editions or vintage pieces, particularly from their London workshops or with European Watch and Clock Company movements.”

Cartier Tank
The 2017 Cartier Tank Cintrée Skeleton in pink gold. (Photo: Cartier)

To celebrate the style’s 100th birthday, Cartier has released 13 new models in four of the Tank families: the Tank Louis Cartier, Française, Américaine and Cintrée. The dearest are a pair of Cintrée skeleton watches with mechanical movements and manual winding, in pink-gold and platinum, for $56,000 and $62,000 respectively.

Flammarion published a sumptuous new book, The Cartier Tank Watch, on November 14. In it, frequent collaborator Franco Cologni charts the Tank’s evolution, reminding the world that, in the age of the Apple Watch, there is still only one definitive rectangular timepiece.

“Tanks will be with us as long as watches are worn,” Borgelt predicts. And presumably that will be for at least a few more days.