Astron was created from Seiko’s passion for innovation, and now, with the design theme of ‘Solidity,’ a series of solar timepieces have been created for the innovative future ahead for Seiko watchmaking. This timepiece is limited to 1,200 pieces worldwide, lightweight with strong looks, the super hard-coated titanium case and bracelet, aluminium and ceramic bezel, and dual curve sapphire glass crystal are designed for durability.
The silvery grey dial showcases an orange-accented vertical subdial layout and horizontal line patterned solar cell. This model has a contemporary feel, with its sleek lines, slim profile, and compact, angular design it has an almost seamless flow from the case, through the lugs and to the bracelet. This piece was designed to have a low centre of gravity, making comfortable on the wrist and the bracelet is crafted from titanium and ceramic for lightweight wearing. The micro-adjustable clasp feature adds a more personalised fit.
This design is powered by the new in-house 5X83 solar-powered movement, which not only charges efficiently, but also features a 1/20th of a second chronograph function for measuring elapsed time. The subdial at 12 o’clock is for the chronograph feature, the subdial at 9 o’clock for setting modes, and the subdial at 6 o’clock for a dual-time feature.
Seiko Astron: the world’s first GPS solar watch – powered by light, automatically adjusted to your exact time through the latest satellite technology.

Michael Dell –
A high-tech GPS Solar watch that sets time automatically anywhere in the world. Lightweight titanium build, sporty orange accents, dual-time & world time features, and perfect for travelers. Stylish, smart, and reliable.
Josh Harris –
The Seiko Astron SSH183J1 combines advanced technology with a bold modern design. Its dark dial with striking orange accents gives it a powerful and futuristic look. Powered by GPS Solar technology, it adjusts to time zones automatically and runs on light energy. Precision, innovation, and standout style make this watch a premium choice for professionals and travelers.
Michael Rubin –
The Seiko Astron SSH183J1 features advanced GPS Solar technology with bold orange accents that enhance its modern appeal. Crafted with precision and innovation, it delivers high performance with a striking contemporary design.
Mat Ishbia –
Designed for the future, the Astron SSH183J1 combines cutting-edge GPS Solar functionality with eye-catching orange details. Its sleek construction and technical excellence make it a standout timepiece for global travelers.
Blair Parry –
The SSH183J1 showcases Seiko’s pioneering GPS Solar movement paired with dynamic orange highlights. Its refined yet sporty design reflects innovation, accuracy, and forward-thinking style.
Jim Kennedy –
With its advanced GPS Solar system and distinctive orange accents, the Astron SSH183J1 represents precision engineering at its finest. The watch blends bold aesthetics with intelligent timekeeping technology.
Randa Duncan –
The Seiko Astron SSH183J1 merges futuristic design with reliable GPS Solar performance. Accented with vibrant orange elements, it offers a powerful combination of innovation, functionality, and modern sophistication.
elliotbutler –
I purchased the Astron Future Innovation GPS Solar Orange Accent Watch SSH183J1 and I’m extremely impressed. The design is stunning, the GPS Solar feature works flawlessly, and it feels premium on the wrist. Definitely worth the investment.