Heritage In Focus: The New Hamilton Khaki Field Mechanical 36mm
Amid the wave of releases surrounding Watches and Wonders, Hamilton introduces a new iteration of one of its most recognizable models: the Khaki Field Mechanical. This latest version, however, carries added historical weight, arriving as a 250th Anniversary Special Edition with design cues rooted in a specific military-issued timepiece from the 1970s.
A Return to Historical Proportions
This edition marks a shift back to a more compact and historically accurate 36 mm case, moving away from the 38 mm size seen in recent years. The dimensions align closely with the original navigator’s watches supplied to U.S. Air Force personnel, reinforcing the Khaki Field’s longstanding military DNA.

The stainless steel case features a matte finish that enhances its utilitarian character. True to its inspiration, the watch includes fixed strap bars, a detail rarely seen in modern watches but valued for durability. The box-shaped acrylic crystal further strengthens the vintage appeal, while also echoing the construction of mid-20th-century military timepieces.
Built for Practical Use
Despite its historical inspiration, the watch incorporates modern specifications suited for everyday wear. The case measures just 10.20 mm in thickness, maintaining a slim and unobtrusive profile on the wrist. Water resistance is rated at 100 meters, ensuring it can handle daily exposure without concern.

The 18mm lug width allows for versatility when it comes to strap options, although the watch is delivered on a military green textile NATO strap that complements its field-watch identity.
Dial Design: Function First
The dial remains faithful to classic field watch principles, prioritizing clarity and legibility. Large Arabic numerals mark the hours, while an inner 24-hour scale provides additional functionality. This dual-scale layout reflects the needs of military navigation and time coordination.

Triangular hour markers and syringe-style hands are coated with Super-LumiNova Grade X2 in a warm, aged tone, enhancing visibility in low-light conditions while reinforcing the vintage aesthetic. The dial is finished with a heritage-style Hamilton logo, adding a subtle historical reference without disrupting the overall design balance.
Manual Movement with Extended Autonomy
Powering the watch is the hand-wound H-50 calibre, a modern evolution based on ETA architecture. Despite its slim 3.35 mm profile, the movement delivers an impressive 80-hour power reserve, significantly exceeding traditional manual-wind standards.
Operating at 21,600 vibrations per hour, the H-50 incorporates a Nivachron balance spring, improving resistance to magnetic fields and temperature variations. It is also equipped with a Nivachoc shock protection system, enhancing durability in active conditions.
Caseback and Edition Details
The movement is protected by a solid caseback, engraved with military-style markings that denote the commemorative nature of the piece. The engraving highlights the 250th anniversary of the United States’ Declaration of Independence and confirms the watch as a limited production for 2026.

Availability and Price
The Hamilton Khaki Field Mechanical 36 mm 250th Anniversary Special Edition is scheduled for release on May 20th. It will be available for a limited time throughout the year, with a retail price of CHF 595.
Final Thoughts
This special edition stays true to the essence of the Khaki Field collection, emphasizing practicality, durability, and historical authenticity. By refining proportions and reintroducing vintage construction details, Hamilton delivers a model that closely mirrors its military roots while maintaining the reliability and performance expected from a modern mechanical watch.

Read more here.
General Specifications:
Brand: Hamilton
Model: Khaki Field Mechanical 36mm 250th Anniversary Special Edition
Reference: H69399930
Dial: Black
Case Material: Stainless steel
Case Dimensions: 36 mm diameter, 10.20 mm thickness
Crystal: Box-shaped acrylic glass
Case Back: Stainless steel
Water Resistance: 100 Meters
Strap: Green textile NATO strap with a steel pin buckle
Calibre: H-50
Functions: Hours, minutes, seconds
Winding: Hand-wound
Frequency: 3 Hz (21,600 Vph)
Power Reserve: 80 Hours
Price: CHF 595
Availability: From May 20, until the end of 2026
Limited Edition: No, but limited in time



