As the United States of America celebrates 250 years since the signing of the Declaration of Independence this year, reflecting on two and a half centuries of history, Hamilton is also looking back on its past. Instead of the 1770s, however, the Swiss-based watch brand has drawn inspiration from the 1970s and has announced the release of the Khaki Field Mechanical 36mm, a virtually 1:1 recreation of the famed 36mm Hamilton FAPD-5101 Type 1 created as a navigator’s watch for the U.S. Air Force in the 1970s.
The Hamilton Boutique in Lancaster, PA – formerly the Bowman Technical School for watchmakers.
The FAPD-5101 Type 1 variant was produced in September of 1970 and was intended for use by U.S. Air Force personnel during the Vietnam War as a navigator’s watch. While Hamilton also produced many other watches for the U.S. Military throughout the 20th Century, this particular piece was unique in that it was slightly larger and therefore more legible than its contemporaries. Due to its modern proportions and rarity, it remains highly prized among vintage watch collectors today.
Hamilton’s American Roots
The launch of the watch was celebrated in Hamilton’s ancestral home of Lancaster, Pennsylvania, just ahead of Memorial Day Weekend. Hamilton was founded in 1892 in Lancaster, where a budding watch industry had been struggling for several years to get off the ground. Seeing the need and potential for high-quality watches in the booming railroad industry, a consortium of local entrepreneurs brought their business acumen to bear, creating what would become one of America’s most successful watch companies. Though its factory was closed and production moved to Switzerland in 1969, the history of Hamilton is still clearly visible in Lancaster to this day, and is even experiencing a revival.
The guest book at Hamilton’s boutique, which contains personal stories of the watchmaking history in Lancaster.
The building that once housed Hamilton’s factory still stands, now a community of apartments and condos. While at first glance that may sound like a sad sentiment, where history has been paved over and forgotten, it couldn’t be further from the truth. The clock towers of the old brick building still stand and function, with all manner of posters and plaques illuminating the watch manufacturer’s history posted throughout. Residents of the building graciously give tours, proud to share the horological history of their home.
Signs of Hamilton’s history in Lancaster readily visible if you know where to look.
The clock towers of Hamilton’s Historical factory building remain to this day.
A few blocks away, in the heart of the Historic District on Duke Street, stands the flagship Hamilton Boutique. The store is housed in the old Bowman building, which had a previous life as a watchmaking school and later a jewelry store, until 2024, when Hamilton took over the space. Today, the boutique is a landmark, regularly opening its doors to the community for special events, such as the launch of the new Khaki Field Mechanical 36mm.
The Return of a Classic
The watch itself is about as faithful a re-edition as one could hope for. The case proportions are the same as is the dial layout. Hamilton even went so far as to use a vintage version of their logo, which was seen on an exceedingly rare civilian version of the watch from the same era. Naturally, there have been improvements and updates as well, such as the use of the caliber H-50 manual-winding movement (derived from the ETA C07.701), which features an 80-hour power reserve. While the stainless steel case isn’t Parkerized as the vintage model was, it does have a nearly identical matte finish and 100m of water resistance.
An original 1970 FAPD-5101 Type 1 alongside the new Khaki Field Mechanical 36mm.
The Khaki Mechanical 36mm is available in two variations – the standard version and the Khaki Field Mechanical 250 limited edition bundle, which features a special “Date APR 2026, 1 of 1,776” caseback engraving and comes with an additional leather strap and a folding carrying pouch. In either case, the watch will be produced only in 2026. Though, if we’re being honest, it is hard to see a future where a watch this well-executed doesn’t find its way back into regular production in some variation or another.
The combination of the 36mm case and the soft, OD green, plain-weave cotton NATO-style strap results in a watch that gets out of the way. That is to say, once you put it on and go about your day, you will quickly forget you’re wearing the thing. But that’s exactly what you want from a field (or in this case, a navigator’s) watch. Like any other essential piece of kit, it must do its job so that you can get on with the business of doing yours. Everything you need, nothing you don’t.
Speaking of the strap, it is really nice. The fabric is soft and comfortable, accented by tone-matched olive green leather accents. Fitting the 18mm lug width, it also underpins the watch’s overall minimal presence on the wrist, which is kind of the whole point. Accessibly priced at $725, a watch like the Khaki Field Mechanical 36mm isn’t meant to be a dramatic, statement-y standout. It’s meant to be clean, classic, and unfussy, a pure distillation of everything a tool watch should be – simple and, well, pretty much perfect.
About the author
Troy Barmore (@troybarmore) is a US-based luxury watch, eyewear, and heritage goods specialist, journalist, and photographer based in New York City. Troy is a contributor to many horological outlets, including Hodinkee, Revolution Magazine, and Chrono24 Magazine.
