Seiko’s 5 Sports Field GMT has always made sense as a practical, everyday travel watch rather than a delicate traveller’s accessory.
Now the line feels more at home in its own skin, with two new dial colours that lean into the field-watch brief instead of simply repeating the usual black-dial formula.
The new HDB001 and HDB002 bring olive green and khaki beige into the collection, keeping the same steel case, fixed 24-hour bezel and automatic GMT movement that made the earlier models appealing at the accessible end of the market.

At a glance
- Seiko has added olive green HDB001 and khaki beige HDB002 versions to the 5 Sports Field GMT series.
- Both models use a 39.4mm steel case, fixed 24-hour bezel, textured dial and automatic 4R34 GMT movement.
- The watches join the permanent collection now, priced at EUR 470 or USD 450.
Earth tones give the Field GMT a clearer identity
The Seiko 5 Sports collection has grown well beyond its SKX-inspired beginnings, with field watches, cleaner everyday pieces and travel-focused GMT models now sitting under the same broad umbrella.
These two additions feel especially well matched to the Field GMT format.
The HDB001 uses a dark olive green dial, while the HDB002 goes for a khaki beige finish.

Both dials retain the matte, grained texture of the existing Field GMT layout, with raised luminous markers, a framed date window at 3 o’clock and an inner 13-to-24-hour scale.
The red-toned GMT hand adds a useful contrast against both colours, while also keeping the watch visually close to the adventure-watch territory it’s clearly meant to occupy.
A compact steel case with everyday travel utility
The case dimensions remain unchanged, which is good news for anyone who liked the proportions of the earlier black-dial Field GMT models.

At 39.4mm across, 13.6mm thick and 47.9mm lug to lug, the watch sits in a compact middle ground that should work for a wide range of wrists.
The stainless steel case combines brushed and polished surfaces, with a fixed radially brushed bezel carrying a 24-hour scale.
That fixed bezel is central to the character of the watch, giving it a more land-based travel-watch feel than Seiko’s dive-influenced GMT models.

A curved Hardlex crystal sits over the dial, and water resistance is rated to 100 metres.
The watches are fitted to a brushed five-link stainless steel bracelet with a three-fold clasp and secure lock.
The 4R34 keeps the GMT function accessible
Inside is Seiko’s calibre 4R34, the automatic GMT movement derived from the familiar 4R platform.

It runs at 21,600 vibrations per hour, uses 24 jewels and offers around 41 hours of power reserve.
The GMT function is an office-style setup, meaning the 24-hour hand is independently adjustable in one-hour increments.
For frequent flyers who prefer a jumping local hour hand, that distinction matters.

For many everyday wearers tracking another time zone from home or work, it remains a useful and affordable implementation.
Details & Specifications
| Brand | Seiko |
|---|---|
| Collection | 5 Sports Field GMT |
| Models | HDB001 olive green, HDB002 khaki beige |
| Case size | 39.4mm diameter, 13.6mm thickness, 47.9mm lug to lug |
| Case material | Stainless steel with brushed and polished finishing |
| Bezel | Fixed, radially brushed 24-hour bezel |
| Crystal | Curved Hardlex |
| Caseback | See-through screwed caseback |
| Water resistance | 100 metres |
| Dial | Matte textured olive green or khaki beige |
| Lume | LumiBrite on markers, hands, seconds hand and GMT hand |
| Movement | Seiko calibre 4R34 automatic |
| Jewels | 24 |
| Frequency | 21,600 vibrations per hour |
| Power reserve | Approximately 41 hours |
| Functions | Hours, minutes, seconds, date and office-style GMT indication |
| Bracelet | Five-link brushed stainless steel bracelet with three-fold clasp and secure lock |
| Weight | 147 grams |
| Availability | Permanent collection, now available |
| Price | EUR 470 or USD 450 |
The appeal here isn’t about reinvention.
It’s about Seiko sharpening an already useful watch with colours that better suit its field-watch personality, while keeping the price, proportions and GMT practicality firmly in everyday territory.










