Seiko Expands their Astron Range with a Pair of Limited Editions

Seiko has recently released two references in their Astron GPS Solar collection. Both models, highlighting the beauty of the night sky, showcase not only the ever-evolving design elements of Seiko, but also the technical prowess of the Japanese brand.

First on the list is the Seiko Astron SSH157J1, which has a classic design where the color choices for this watch can really pop. The titanium case is offset by a black ceramic bezel which, in turn, is complemented by the transparent light-blue molded dial, designed to reflect the starry sky and changes depending on the wearer’s wrist position.  The watch is equipped with a dual-curved sapphire crystal, providing clarity and scratch resistance. And at 43.3 mm, it’s a watch with presence that would still be great as part of your daily rotation.

In contrast, the Seiko Astron SSJ027J1 is a bit more contemporary. Geometric cases have become more popular over the years and this reference is no exception, showing how a new design can be eye-catching without looking too ostentatious. The SSJ027J1 combines the same colorway as the SSH157J1 (titanium, light-blue, and black) in a more subtle way. This watch clocks in at 41.2mm, giving it some presence on the wrist as well.


The SSH157J1 is powered by the Caliber 5X53 GPS Solar movement, which means the watch can adjust to the exact time anywhere in the world using GPS signals that the watch connects to throughout the day. The watch also features a perpetual calendar, automatic time zone adjustment, and a power reserve indicator. 

The SSJ027J1, on the other hand, is equipped with the Caliber 3X22 GPS Solar movement. This movement offers similar GPS functionality, allowing the watch to receive time signals and adjust automatically to the local time. It features a perpetual calendar, ensuring the date is always correct. 

Both watches have a power reserve of approximately six months in use and two years in power save mode.

The SSH157J1 is priced around $3,000, while the SSJ027J1 is slightly more affordable, with a price tag of $2,200. Both models are limited editions with a production of just 1,500 per reference. They are available next month via authorized Seiko channels. Seiko

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Brett F. Braley-Palko is a writer based out of Pennsylvania. Having a full-time job in the luxury pens industry has given Brett an appreciation and understanding for the EDC market. When not working, Brett has three dogs and an upcoming novel that both keep him pretty busy.