The Seiko 5 Sports Field GMT launched in black, added a blacked-out version, and stopped there. Two new references end the monochrome run: the HDB001 in an olive green Seiko calls Khaki Drill, and the HDB002 in a khaki beige named Desert Sand. Both dials take their colors from vintage military uniforms, which is exactly the wardrobe a field watch should raid.
They’re permanent additions to the collection, priced at $450 in the US, and the hardware hasn’t changed at all. Same 39.4mm case, same GMT caliber, same five-link bracelet. This release lives or dies on its dials, and the dials carry it.
Seiko 5 Sports Field GMT HDB001 Khaki Drill
39.4mm stainless steel case · Caliber 4R34 GMT · 10 bar water resistance
Price: $448.00
Where to buy: Buy on Amazon
Two dials, one grainy finish
Both new dials share a matte, grained texture that reads almost like sandblasted cloth up close. Raised Arabic numerals ring the dial, LumiBrite fills the markers and hands, and a second scale printed inside the track runs from 13 to 24 for the GMT hand.
The GMT hand is fully orange on both watches, and so is the tip of the seconds hand. Against green the orange sits loud. Against beige it turns the whole watch warm. Small detail, big difference in how the two wear.
At night the LumiBrite does the talking. Big numerals, fat hands, nothing to decode.
Khaki Drill is the green one
The HDB001’s olive green is dark enough to pass as a service dial and green enough to never read as black across a room. The date sits framed at 3 o’clock, white numerals on a black disc, and the disc disappears into the dial the way a date window should.
This is the colorway that looks most at home on the bracelet it ships with. Brushed steel, olive dial, one loud orange hand. The formula is old military, and it still works.
It is the safe pick. Safe isn’t an insult here.
Desert Sand runs warmer
The HDB002 flips the palette. Its beige dial runs closer to ivory in bright light, and the date disc goes white with black numerals, the mirror image of its sibling. Everything else, from the grain to the numerals, stays shared.
Beige dials usually skew dressy. This one doesn’t, because the raised numerals, the grain and that orange hand keep pulling it back toward the field. It’s the fresher of the two faces, and the one that stands furthest from every other Seiko 5 on the shelf.
Choosing between them is purely a color call, and that’s a compliment to the base watch. Nothing about the case, the movement or the bracelet argues for one dial over the other. The green is pure equipment. The beige lands closer to clothing, in a good way, like a waxed field jacket that happens to track two time zones.
The fixed-bezel branch of the family
The 5 Sports GMT family splits two ways. The SKX branch wears a rotating bezel and a sportier case, the branch that just got a US-only limited edition with a maroon sunray dial. The Field branch keeps a fixed bezel, a smaller case and a plainer tool-watch brief.
That restraint suits the format. A field GMT needs a second time zone you can read at a glance and a case that stays out of the way, not a bezel that turns. The new colors lean into that brief.
A fixed bezel also means one less thing to knock out of alignment on a door frame, a real consideration on a watch built to be worn outdoors and not thought about. The 24-hour scale is engraved into the steel and filled in black, so it stays legible long after a printed insert would have faded or chipped.
Same case, same caliber, no surprises
Underneath, nothing moved. The stainless case measures 39.4mm across, 13.6mm thick and 47.9mm from lug to lug, topped with a curved Hardlex crystal and a fixed steel bezel engraved with the 24-hour scale. Water resistance is 10 bar, the case back screws down and shows the movement, and magnetic resistance is rated at 4,800 A/m.
The caliber 4R34 works as a caller-style GMT. Its orange hand adjusts in one-hour jumps while the main hands stay put, so a second time zone rides along without disturbing home time. Reading it is simple: the GMT hand points at the bezel’s 24-hour scale, and the printed 13-to-24 track inside the dial covers the hours the numerals leave out. Set the orange hand once at the airport and home time follows you for the whole trip.
It runs at 21,600 vibrations per hour with 24 jewels, hacks, hand-winds, and holds roughly 41 hours of reserve. The bracelet is a brushed five-link design on a three-fold clasp with a push-button release and a secure lock.
At 147 grams the watch carries real heft for its size, most of it in that bracelet. The lugs take 20mm straps, so the NATO rotation a field watch deserves is an easy swap, and both dials look better on canvas than most watches in this line.
| References | HDB001 (Khaki Drill) · HDB002 (Desert Sand) |
| Caliber | 4R34, automatic with manual winding |
| Power reserve | Approx. 41 hours |
| Case | Stainless steel, 39.4mm × 13.6mm, 47.9mm lug to lug |
| Crystal | Curved Hardlex |
| Water resistance | 10 bar |
| Bracelet | Stainless steel, three-fold clasp with push button release |
| Weight | 147g |
| Price | $450 |
Two dials, one watch underneath, and the pick comes down to which uniform you’d rather wear every day.
Nothing here reinvents the field GMT, and the restraint is the appeal. The watch was already the right size, the right movement and the right price; it just wore black to everything. Amazon’s token cut amounts to two dollars, so buy the color you like.
Seiko 5 Sports Field GMT HDB002 Desert Sand
39.4mm stainless steel case · Caliber 4R34 GMT · Khaki beige dial
Price: $446.99
Where to buy: Buy on Amazon
Between the two, Desert Sand changes the watch’s character the most, while Khaki Drill is the safer long-term wear. Either way the lineup finally has some color in it, and the color costs nothing extra over the black dials it joins. If a black dial was the reason to wait on this watch, that reason is gone.
