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Express option for £4.95 for orders under £200.
Inspired by the FAPD 5101 navigator’s watch issued to U.S. Air Force crews around 1970, the 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, this special edition piece honors Hamilton’s military heritage with authentic, purpose built detail.
Specifications
ReferenceH69399930
CaliberH-50
CollectionKhaki Field
MovementMechanical
Case size36mm
Thickness (mm)10.2
Dial colorBlack
Case materialStainless steel
CrystalAcrylic
Lug to lug46mm
Lug width18mm lug width
Power reserve80 hour
StatusCurrent collection
Water Resistance10 bar (100m)
NivachronYes
Super LuminovaYes
Strap
Strap referenceH6000002601
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.
Information
Free express delivery 3-4 working days*
2 Years International Warranty
Easy returns within 30 days| No returns on engraved watches
We offer complimentary express delivery for all watch purchases. Place your order today and get it delivered within 48 to 72 hours.
All our orders are dispatched from Switzerland. Please note that all the delivery duties are included with your order.
To find out more information about our delivery please visit “Delivery"
Return
We offer easy returns within 30 days from delivery. For more information, please visit “Returns & Exchanges”
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 Legacy Reborn
A modern revival of the iconic FAPD 5101, the Khaki Field Mechanical 36 brings its 1970s military spirit into the present with refined details
Exclusively Produced in 2026
This special Khaki Field will be produced only throughout 2026 to celebrate the 250th anniversary of the Declaration of Independence in U.S.A.
5/5
Overall rating | 5 reviews
A very nicely sized timepiece which is true to the original.
Suthir K.
18 June 2026
Fantastic watch feels and looks great! I just need more 18mm straps from Hamilton (a black one), and maybe try to line up the case back some way, but they are just nitpicks I couldn't be happier with the watch!
anonymous anonymous.
11 June 2026
Disappointed with the lack of written material included. I had expected a “glossy” pamphlet extolling Hamilton, the watch, the history of the original et al ? There is a space in the packaging that I would have expected to find this but all it contained was a generic quick start instruction and a postcard.
Peter M.
31 May 2026
Best watch purchase I’ve made so far and exceeded expectations
