Hamilton, a brand celebrated for its military-inspired field watches, as well as iconic models like the Ventura and Intra-Matic Chronograph, has recently turned its attention to the Khaki Navy series. This collection, which has always represented the brand's adventurous spirit, receives a significant update for 2026. The refresh introduces new dials and color schemes to both the Khaki Navy Scuba Auto diver and the Khaki Navy Scuba Auto GMT, prompting a closer look at whether these changes elevate the line's standing.
My personal affinity for Hamilton watches is well-documented, with their Khaki Field line holding a special place. Models such as the Khaki Field Mechanical Bronze, Khaki Field Murph, and the standout Khaki Field Titanium Limited Edition from a collaboration with Engineered Garments, have consistently impressed. However, the Khaki Navy collection has historically struggled to capture my full attention, largely due to the crowded market of affordable dive watches where numerous competitors, including fellow Swatch Group brands like Certina, Mido, and Tissot, offer formidable alternatives. Hamilton's strategy has been to differentiate by framing these watches as tools for adventurers and by incorporating unique design elements, such as the 13–24-hour scale on the dial, which ties them to the Khaki Field aesthetic. While distinctive, this feature hasn't always resonated with me, making me lean towards the cleaner design of the Khaki Navy Frogman Auto. However, the latest updates to the Khaki Navy Scuba line, featuring new dials and colors, aim to redefine its appeal. I had the opportunity to examine four updated three-hand models and two new Khaki Navy Scuba Auto GMT variants.
The standard Khaki Navy Scuba Auto dive watch retains its 40mm stainless steel case, measuring 12.95mm thick and 50mm lug-to-lug, with a 100m water resistance. A key aesthetic enhancement is the redesigned dials, which now feature a lacquered, wave-textured pattern, reminiscent of high-end dive watches, adding a layer of sophistication. All models now share a unified dial design, incorporating round indexes with wedge-shaped markers at the cardinal points, along with the distinctive 13–24-hour scale and a date window. Powering these timepieces is the reliable Hamilton H-10 caliber, a variant of the Powermatic 80, offering an 80-hour power reserve. While the watches are robust, the non-tapering stainless steel bracelet can feel substantial, making the rubber strap options, particularly the vibrant turquoise model, more comfortable and visually appealing. For the 43mm Khaki Navy Scuba Auto GMT, Hamilton introduces new color options for its existing design, including black and navy-blue dials with ceramic bezels. These GMT models, while larger, offer a cleaner dial without the 13–24-hour scale, which I find to be a significant improvement. They are driven by the Hamilton H-14 GMT caliber, another Powermatic 80 derivative. Despite their size, these GMTs provide a sturdy feel, though a smaller 40mm or 41mm option would enhance wearability and broad appeal, especially for those seeking an affordable yet feature-rich GMT.
The overall refresh of the 40mm Khaki Navy Auto is a positive development. The wave-patterned dials and revised indexes offer a more refined aesthetic compared to previous generations, making the collection more competitive. The turquoise variant, in particular, stands out as a vibrant and appealing option. While personal preferences might still lean towards alternatives from Certina or Mido, these updated Hamilton models present a compelling choice for enthusiasts drawn to Hamilton's unique design language and the practicality of a 13–24-hour scale. The new 43mm Khaki Navy Scuba Auto GMTs also represent a logical expansion, catering to the demand for larger watches with their popular color additions. While I envision a smaller GMT option being incredibly popular, the current offerings undoubtedly strengthen Hamilton's position in the accessible dive watch segment.