Some watches take a few tries to figure out what they are. When Seiko dropped a GMT version of its 5 Sports Field watch back in 2024, the black dial felt a little safe, and the white dial that went global earlier this year leaned clean and modern. Both worked, but neither really leaned into the trench watch bones underneath. That changes now with two colorways that read like they were pulled straight from a surplus store rack. This is the new Seiko 5 Sports Field GMT HDB001 Khaki Drill and HDB002 Desert Sand.
The field framing isn’t weird marketing. The inner 13 to 24 track on the dial is a military timekeeping convention that predates the GMT complication entirely, and the whole 5 Sports Field family descends from trench watch design. The Khaki Drill wears a green pulled from classic field uniforms, while the Desert Sand goes warm beige, somewhere between ivory and faded fatigues. Both keep white markers and hands for contrast, so the orange GMT hand still pops against either tone. I covered the white dial SSK059 when it finally shed its JDM exclusivity back in February, and I’ll admit that one still has my heart. These new colors tempt me anyway.
The rest of the package carries over untouched, which I think is probably the right call. The stainless steel case measures 39.4mm across, 13.6mm thick, and 47.9mm lug to lug, with brushed surfaces, a curved Hardlex crystal, and 100 meters of water resistance. The compact footprint has been a big part of the line’s appeal from day one. The fixed 24-hour bezel handles second time zone duty alongside the Calibre 4R34, a 24-jewel automatic with hacking seconds, hand winding, a 41-hour power reserve, and an exhibition caseback.
Purists will say this is a caller-style GMT, which means the 24-hour hand adjusts independently in one-hour steps while local time stays put. At this price, I’ve never found that worth complaining about. The five-link bracelet returns as well, though the 20mm lug width makes NATO or leather swaps easy if the military theme sends you down that road.
Pricing sits at £410 on Seiko’s site, matching the existing black dial, with US numbers still unannounced. Early reports point to an August launch in Japan first, and wider availability hasn’t been confirmed yet. What strikes me is how few mechanical GMTs exist at this price that you’d actually wear hard, and this one keeps getting more distinct with every colorway. Whether that’s enough to pull me away from the white dial I’ve been eyeing since February is another question entirely. I keep coming back to that Desert Sand, though…
Co-Founder & Senior Editor
Michael Peñate is an American writer, photographer, and podcaster based in Seattle, Washington. His work typically focuses on the passage of time and the tools we use to connect with that very journey. From aviation to music and travel, his interests span a multitude of disciplines that often intersect with the world of watches – and the obsessive culture behind collecting them.