Inspired by the FAPD 5101 navigator’s watch issued to U.S. Air Force crews around 1970, the A250 Khaki Field Mechanical 36mm revives the rugged simplicity of a true military tool. Its matte case, fixed bars, acrylic box glass, and khaki cotton NATO strap stay faithful to the original specifications, enhanced with Super-LumiNova® Grade X2 and a protective dust cover. Produced exclusively in 2026 for the anniversary of the USA, this special‑edition of 1776 pieces comes paired with a second rugged leather strap and is delivered in bundle packaging, honoring Hamilton’s military heritage with authentic, purpose‑built detail.
Specifications
ReferenceH89399930
CaliberH-50
CollectionKhaki Field
MovementMechanical
Case size36mm
Thickness (mm)10.2
Dial colorBlack
Case materialStainless steel
CrystalAcrylic
Lug width18mm
Power reserve80 hour
StatusPast collection
Water Resistance10 bar (100m)/145 psi (328ft)
NivachronYes
Super LuminovaYes
Strap
Strap referenceH6000002611
Strap typeTextile
Buckle typePin buckle
Buckle width18mm
Movement
H-50
The H-50 is an exclusive caliber specifically developed for our handwinding watches. The H-50 is available with or without a date function and has an extended power reserve of up to 80 hours, ensuring maximum reliability even when it is not wound for a few days.
We offer free delivery for all orders. If you would like your order to arrive sooner you can select “Next-Day Delivery” (rates vary by location). To find out more information about our delivery options please visit our Shipping Policy.
Return
We offer returns within 14 days from delivery. For more information, please visit our Return Policy.
If you have an item that you would like to return, please contact our customer service department at 1-800-234-8463 or Write us.
Features
Military Heritage Engraved
Paying tribute to the original FAPD 5101, this exclusive engraving links today’s Khaki Field Mechanical to its authentic military origins.
MANUAL WINDING
Wind your mechanical watch by turning the crown clockwise.
STAINLESS STEEL CASE
A highly resistant alloy composed of steel and chromium. It can be worked to resemble a precious metal. It is nearly impervious to rust, tarnish, and corrosion.
NIVACHRON™ BALANCE SPRING
Nivachron™ is an alloy used to produce balance spring to resist magnetic fields and improve accuracy. It reduces the effects of magnets, temperature, and shocks.
H-50 CALIBER
An exclusive caliber specifically developed for our handwinding watches, the H-50 has an extended power reserve of up to 80 hours.
WATER RESISTANCE
Your timepiece is resistant up to 10 bar (100m) / 145 psi (328 ft).
A TRIBUTE TO AMERICAN INDEPENDENCE
Honoring Hamilton’s military heritage and craftsmanship, this limited-edition Khaki Field celebrates the 250th anniversary of U.S. Independence.
A First Batch of 1776 Pieces
To celebrate the 250th anniversary of the Declaration of Independence, the first batch of 1,776 pieces is reserved for the U.S.A.
