This $2,900 Seiko HAB005 Astron GPS Solar is built for travelers who are tired of setting their watch

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If you travel frequently, one of the small annoyances of wearing a traditional watch is resetting it whenever you cross time zones. Your phone handles that automatically, but many watches still expect you to do the work.

Price: $2,900
Where to Buy: Seiko

The Seiko HAB005 Astron GPS Solar 2026 Limited Edition is designed to remove that chore. Its Caliber 5X63 GPS Solar movement can adjust the displayed time using GPS signals, while solar charging means there is no routine plug-in charging. The HAB005 costs $2,900 in the US and is limited to 1,200 pieces.

That is serious money for a quartz watch. But the HAB005 makes more sense when viewed as a travel tool designed to remove several small inconveniences at once.

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Crossing a border should not mean resetting your watch

The HAB005 supports GPS time-zone adjustment, automatic and manual time adjustment, world time for 38 cities, dual time, daylight-saving-time functionality, and a time-transfer function that switches the main and sub-dial displays.

The practical benefit is straightforward. Arrive somewhere new, establish GPS reception, and the Astron can adjust to the local time zone rather than requiring you to move the hands manually.

GPS reception still depends on suitable conditions, so the technology does not guarantee successful reception everywhere. Even without a GPS signal, however, Seiko rates the 5X63 movement to ±15 seconds per month at temperatures between 5°C and 35°C.

GPS provides the travel convenience, but the underlying quartz movement remains accurate when satellite reception is unavailable.

The second travel problem it solves is finding a charger

GPS adjustment would lose some of its appeal if the watch had to join your phone, laptop, earbuds, and everything else competing for a charger.

The HAB005 avoids that problem by getting its energy from light.

Seiko rates it for approximately six months of operation on a full charge, stretching to roughly two years in power-save mode. It also includes a power-reserve indicator, overcharge prevention, and power-saving functionality.

Solar does not mean unlimited energy. The watch still needs adequate light to replenish its rechargeable power source.

The practical difference from a smartwatch is significant. There is no charging cable to pack and no nightly charging routine to remember.

Titanium helps make the 43.4mm case easier to live with

The HAB005 is not a small watch.

Its titanium case measures 43.4mm across, 12.4mm thick, and 50mm lug to lug. The case and bracelet use titanium, while the case receives Seiko’s super-hard coating.

Those dimensions give it considerable wrist presence, so anyone who prefers compact watches should pay attention.

The bracelet also gets an easy-adjust three-fold clasp with push-button release. The practical benefit is the ability to fine-tune the fit without requiring a full resizing.

Actual comfort remains subjective. Titanium construction and an adjustable clasp are specifications. Whether the 43.4mm case feels comfortable on your wrist requires trying it on.

The green dial is where the limited edition earns its personality

Seiko says the HAB005 uses a newly developed pressed dial pattern inspired by the sparkling facets of quartz crystal. Its Crystal Green finish takes its color inspiration from green quartz.

That is Seiko’s design story rather than an objective performance benefit.

Whether the dial actually reminds you of quartz is subjective. What matters is that the textured green treatment gives this limited edition a visual identity beyond simply putting a serial number on an existing watch.

Seiko also marks the case back “LIMITED EDITION” and individually engraves the serial number.

The extra strap is more than something to leave in the box

Seiko includes a black silicone strap and a special nylon presentation box. More importantly, the HAB005 has a quick-change system designed to make switching between the titanium bracelet and silicone strap straightforward.

Seiko says the bracelet or strap can be released at the push of a button, while the replacement can be pressed into place.

That makes the second strap genuinely useful rather than just another limited-edition accessory.

The titanium bracelet gives the watch a more formal look, while the included black silicone strap offers a sportier alternative. That distinction is aesthetic rather than technical, but being able to switch between them easily gives owners more flexibility.

There is plenty here beyond GPS

The HAB005 uses a sapphire crystal with Seiko’s super-clear coating, LumiBrite on the hands and indexes, 10-bar water resistance, 4,800 A/m magnetic resistance, and a screw case back.

Caliber 5X63 also provides a 24-hour chronograph measuring in 1/20-second increments, a perpetual calendar programmed through February 28, 2100, and an in-flight mode that prevents GPS signal reception.

Those functions make the Astron more than a one-purpose GPS watch.

The 10-bar water-resistance rating also strengthens its everyday versatility, although buyers looking specifically for a dedicated dive watch have better-suited options elsewhere in Seiko’s lineup.

Who should buy the Seiko HAB005 Astron?

The Seiko HAB005 makes the strongest case for frequent travelers who want connected-level convenience without wearing a connected watch.

You get GPS time adjustment, dual time, solar charging, a perpetual calendar, titanium construction, and two strap options without an app, phone pairing, or nightly charging routine.

The compromises are clear. $2,900 is expensive, and the 43.4mm case will be too large for some wrists. If you rarely travel and do not mind setting a conventional watch yourself, much of the Astron’s technology may be unnecessary.

The limited production of 1,200 pieces adds exclusivity, while the Crystal Green dial gives collectors something visually distinctive.

But scarcity is not the best reason to buy it.

Price: $2,900
Where to Buy: Seiko

The HAB005 makes its strongest argument every time you travel: it handles several little watch-related chores for you, leaving you with one less thing to think about when you arrive somewhere new.