Introducing: The Seiko Astron SSH187 And SSJ039 — Two Galaxy-Inspired GPS Solar Limited Editions

The Seiko Astron SSH187 and SSJ039 form a pair of limited editions built on a familiar Astron GPS Solar platform. The models share a new dial concept based on swirling stars, executed in a dark turquoise tone with a subtle glitter effect. These, then, are aesthetic changes rather than technical ones. Still, we figured they are well worth covering.

The new Seiko Astron models carry over the proven 5X83 and 3X62 calibers but introduce a more expressive dial and a fully black-coated titanium exterior that gives the familiar shapes a different vibe altogether. Let’s have a closer look!

The new Seiko Astron SSH187 and SSJ039

Seiko’s Astron collection has always focused on autonomy and accuracy. Since the GPS Solar concept launched in 2012, the line has been about offering a solar-powered watch that adjusts to local time with satellite guidance. The Seiko Astron SSH187 and SSJ039 continue in that tradition while leaning more on design.

This galaxy theme fits within Seiko’s habit of releasing occasional Astron editions with nature-inspired textures. The new embossed spiral pattern radiates outward from the center. While more intricate than many earlier textured dials in the line, it’s still practical in use because the surface doesn’t interfere with legibility.

Seiko gives both watches a hard, scratch-resistant coating to maintain the jet-black tone indefinitely. It gives them a slightly more ominous presence than some earlier Astrons, even though the polished elements still show enough reflection to keep the design from becoming flat. The result is familiar Astron architecture with a more dramatic face.

Seiko Astron SSH187

The case and bracelet follow the architecture of the existing 43.3mm GPS Solar Dual-Time Chronograph models. Titanium keeps the weight down, and the black hard coating gives the watch its menacing appearance. You get a dual-curved sapphire up top. Seiko rates the water resistance at 10 bar. The clasp includes the Astron’s Smart Adjuster system, which works well for daily wear.

The movement is the GPS Solar chronograph caliber 5X83. It adjusts time automatically when it receives a satellite signal, and it can switch time zones with the press of a button. This caliber includes a perpetual calendar that’s correct until February 28th, 2100, independent hour-hand adjustment, and a power-saving mode. The dial indicates whether the watch is in contact with satellites and even displays the number of satellites it is in contact with. The SSH187 requires at least four to determine its current time zone.

Without a doubt, the dial and details are the most distinctive parts of the SSH187. The spiral embossing carries fine ridges that catch the light without looking flashy. The glitter on the surface is subtle and reminiscent of a starry sky. A bright turquoise ring around the bezel emphasizes the dark turquoise dial. The Seiko Astron SSH187 is limited to 1,500 pieces and costs €3,000.

Seiko Astron SSJ039

The case and bracelet of the SSJ039 take after the simpler 41.2mm Astron references. Titanium again keeps the watch comfortably light, and the hard coating covers the full exterior for another uniform black appearance. Seiko rates the watch’s water resistance at 10 bar, and the bracelet uses the same convenient clasp adjuster as its larger sibling.

Inside ticks Seiko’s caliber 3X62. It offers automatic satellite time correction and a perpetual date display (also accurate until February 28th, 2100). The movement has a stable six-month power reserve on a full charge. Like its bigger brother, the Seiko Astron SSJ039 displays the number of connected satellites for GPS positioning and quick time adjustment.

While the dial and details mirror the spiral concept of the SSH187, there’s a little more space for the texture to breathe. The turquoise tone is identical, and the glitter effect shows slightly more prominently due to the cleaner layout. Seiko will also produce this watch in a limited run of 1,500 pieces, each with a retail price of €2,500.

Initial impressions of the Seiko Astron SSH187 and SSJ039

These new dials suit the Seiko Astron SSH187 and SSJ039 very well. They make sense from a thematic viewpoint, as the Astron series name obviously refers to the stars. It also serves as a gentle reminder of the satellites floating across the starry sky that keep your watch on time.

Aesthetically, I feel these dials effectively soften the typically harsh and technical look of the Astrons. They give the two models a little more style and flair, which I am all for. Lastly, I appreciate that Seiko kept the prices of these limited editions in line with the regular collection. All in all, if the Seiko Astron line and its innovative approach speak to you, I reckon you will love these.

What do you think of the new Seiko Astron SSH187 and SSJ039? Let us know in the comments section below!