July 22, 2026
new-green-and-blue-dials-for-the-hamilton-khaki-field-power-reserve-40mm-introducing-price

Hamilton, a name synonymous with American horological heritage, has once again expanded its beloved Khaki Field collection with the introduction of two new dial colors: a rich matte olive green and a striking matte mid-blue. These additions to the Khaki Field Power Reserve 40mm line build upon the brand’s legacy of crafting accessible, robust, and military-inspired timepieces. For decades, Hamilton has maintained a strong presence in the accessible watch market, with its Khaki Field collection serving as a cornerstone of its identity. While many models draw direct inspiration from mid-20th-century Hamilton Hacked watches, the brand has consistently demonstrated a willingness to evolve, integrating modern materials, larger case sizes, automatic movements, and, as seen in this latest release, practical complications like power reserve indicators.

The Khaki Field Power Reserve 40mm, first introduced last year with classic black and white dial options, now offers enthusiasts more choices to suit their style and preferences. This expansion reflects Hamilton’s astute understanding of market demand and its commitment to offering compelling value propositions within the competitive watch industry. The brand, now part of the Swatch Group, leverages a rich history dating back to 1892, when it was established in Lancaster, Pennsylvania, as one of America’s leading watch manufacturers. Its early success was built on producing reliable pocket watches and later, wristwatches that served critical roles in military operations, earning it the moniker "The Watch of Railroad Accuracy." This heritage continues to inform the design and ethos of the Khaki Field collection, embodying durability, legibility, and functionality.

A Deeper Dive into the Khaki Field Power Reserve 40mm

The Khaki Field Power Reserve 40mm occupies a strategic position within the broader Khaki Field lineup. While the classic Khaki Field Mechanical (hand-wound) is available in 38mm and 42mm case sizes, and even a limited edition 36mm model, the Power Reserve variant offers a balanced 40mm diameter. This size, combined with a sub-12mm thickness and a 48mm lug-to-lug measurement, provides a comfortable fit for a wide range of wrists. It is worth noting that Hamilton’s Khaki Field collection often features relatively long lugs, a design characteristic that contributes to their distinctive aesthetic but is an important consideration for potential buyers when assessing wearability.

The case itself is crafted from stainless steel and features a fully sandblasted finish. This utilitarian treatment not only enhances the watch’s military-inspired, anti-reflective appeal but also underscores its identity as a genuine tool watch, designed for rugged use. The caseback is solid steel and secured by screws, contributing to the watch’s robust construction. Protecting the dial is a sapphire crystal, renowned for its scratch resistance, which is further enhanced by an anti-reflective coating to ensure optimal legibility in various lighting conditions. With a water-resistance rating of 100 meters, the Khaki Field Power Reserve 40mm is well-equipped to handle everyday wear and occasional submersion, aligning with its practical and durable design philosophy.

New Green and Blue Dials for the Hamilton Khaki Field Power Reserve 40mm

New Dial Colors: A Touch of Military Heritage and Modern Appeal

The recent release sees the addition of two new dial colors, expanding the palette of the Khaki Field Power Reserve 40mm collection. The matte olive green dial is a natural and fitting choice, deeply rooted in the military aesthetics that define the Khaki Field line. This color evokes the classic field uniforms and equipment used by armed forces, offering a nod to the brand’s historical connections. It exudes a sense of ruggedness and adventure, appealing to those who appreciate vintage military design.

Complementing the traditional green is a matte mid-blue dial. This option introduces a fresher, more contemporary feel to the collection. While still retaining the core field watch DNA, the blue offers a slightly more urban and versatile aesthetic, making it suitable for a broader range of occasions beyond purely outdoor pursuits. This modern interpretation demonstrates Hamilton’s ability to adapt its heritage-inspired designs for a contemporary audience without sacrificing its foundational principles.

Both new dial variants maintain the collection’s commitment to legibility. The hands and triangular hour markers are generously filled with Old Radium Super-LumiNova, providing excellent luminescence in low-light conditions. This vintage-toned lume further enhances the watch’s classic appeal. Key elements of the Khaki Field design remain intact: prominent Arabic numerals for the hours, a clean and simple minute track encircling the dial, and an additional 13-24 hour track positioned in the center. This layered approach to dial design ensures that time can be read at a glance, a critical feature for any field or military watch.

The Power Reserve Complication: A Practical Addition

Perhaps the most distinguishing feature of the Khaki Field Power Reserve collection, and one that sets it apart from many traditional field watches, is the integrated power reserve indicator. Located at the 9 o’clock position, this sub-dial features a gauge with "F" (Full) and "E" (Empty) markings highlighted in red. A small, lume-filled triangular hand indicates the remaining power. While a power reserve indicator might be considered an unexpected complication on a pure field watch, its inclusion on this hand-wound mechanical timepiece adds a significant layer of practicality. It serves as a constant reminder to wind the watch, ensuring it is always ready for use, a crucial aspect for a tool designed for reliability.

The Engine Within: Hamilton Calibre H-23

Powering the Khaki Field Power Reserve 40mm is the Hamilton calibre H-23. This movement is a testament to the collaborative engineering within the Swatch Group, being an evolution of ETA’s widely respected Powermatic 80 platform. Specifically, the H-23 is based on the ETA 2801-2, the hand-wound variant of the ubiquitous ETA 2824-2 automatic movement. This foundation provides a robust and reliable mechanical base.

New Green and Blue Dials for the Hamilton Khaki Field Power Reserve 40mm

The H-23 movement has been enhanced with the addition of the power reserve complication. It operates at a frequency of 3Hz (21,600 vibrations per hour), a standard for many reliable mechanical movements. A significant advantage of the Powermatic 80 platform, and thus the H-23, is its impressive 80-hour power reserve. This extended reserve means the watch can remain wound and functional for over three days when fully wound, offering considerable convenience for the wearer, especially for those who don’t wear their watch daily. Furthermore, the movement incorporates a Nivachron balance spring, a material known for its superior resistance to magnetic fields and greater shock absorption, contributing to enhanced accuracy and longevity. The inclusion of a slipping-spring differential mechanism is also a key component of the power reserve display, allowing for a precise reading of the remaining energy.

Straps, Bracelets, and Availability

Hamilton consistently offers its Khaki Field models on versatile straps, and the Power Reserve 40mm is no exception. Each new dial color is available on a NATO textile strap that complements the dial. The green dial comes with a green NATO strap featuring brown leather loops and a pin buckle, while the blue dial is paired with a blue NATO strap and black leather loops. These NATO straps are not only durable and comfortable but also embody the rugged, utilitarian spirit of a field watch.

For those seeking a more refined or substantial feel, an optional three-row stainless steel bracelet is also available. This bracelet features a butterfly clasp and Hamilton’s EasyClick interchangeability system, allowing for quick and simple strap or bracelet changes without the need for tools. The sandblasted finish of the bracelet mirrors the case’s aesthetic, maintaining a cohesive tool-watch appearance.

The new Hamilton Khaki Field Power Reserve 40mm models are part of the brand’s permanent collection, meaning they are not limited editions and are available immediately. This accessibility ensures that enthusiasts can acquire these timepieces without delay.

Pricing and Value Proposition

Hamilton has long been recognized for its strong value proposition, offering quality Swiss-made mechanical watches at accessible price points. The Khaki Field Power Reserve 40mm continues this tradition. The models equipped with the NATO textile strap retail for CHF 765 or EUR 915. For those opting for the stainless steel bracelet, the price is CHF 845 or EUR 995. These price points position the Khaki Field Power Reserve 40mm as a compelling option for collectors and everyday watch wearers looking for a reliable, stylish, and feature-rich mechanical watch with a rich heritage.

New Green and Blue Dials for the Hamilton Khaki Field Power Reserve 40mm

Broader Implications for Hamilton and the Market

The expansion of the Khaki Field Power Reserve 40mm collection with new colors underscores Hamilton’s strategic approach to product development. By offering popular colors like green and blue, the brand taps into current market trends while staying true to its established identity. The inclusion of the power reserve complication on a hand-wound movement, particularly at this price point, adds a functional layer that enhances the user experience and provides a talking point for enthusiasts.

This move also signals Hamilton’s continued focus on the accessible mechanical watch segment, a category that has seen sustained growth in recent years. As consumers increasingly seek out well-made, mechanical timepieces with genuine heritage and practical features, Hamilton’s Khaki Field collection, with its blend of historical inspiration and modern execution, is well-positioned to meet this demand. The brand’s ability to innovate within its core collections, such as adding new complications or colorways to established models, demonstrates a dynamic and responsive approach to the global watch market. The success of these new releases will likely reinforce Hamilton’s position as a leader in offering compelling value and enduring style.

Technical Specifications – Hamilton Khaki Field Power Reserve 40mm

  • Case: 40mm diameter x 11.95mm thickness x 48mm lug-to-lug – stainless steel, sandblasted – sapphire crystal with AR coating – solid steel caseback – 100m water-resistant
  • Dial: Matte blue or green dial – red-highlighted power reserve indicator at 9 o’clock – hands and hour markers with Old Radium Super-LumiNova – "Power Reserve 80 Hours" inscription
  • Movement: Hamilton calibre H-23 (base Powermatic 80, based on ETA 2801-2) – hand-wound, exclusive ETA development – 21,600vph – Nivachron balance spring – slipping-spring differential mechanism – 80h power reserve – hours, minutes, seconds, power reserve
  • Bracelet: 20mm lug width – green NATO textile strap with brown leather loops and pin buckle, or blue NATO textile strap with black leather loops and pin buckle, or three-row stainless steel bracelet with butterfly clasp and EasyClick interchangeability system
  • References:
    • H69509960 – green on NATO strap
    • H69509160 – green on steel bracelet
    • H69509940 – blue on NATO strap
    • H69509140 – blue on steel bracelet
  • Availability: Immediately available, permanent collection
  • Price: CHF 765 or EUR 915 (NATO strap); CHF 845 or EUR 995 (steel bracelet)