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| The Seiko Astron SSH187J1 (left) and the SSJ039J1 (right), pictured against a gray-black gradient background and Seiko's logo. |
If you've been captivated by the mysteries of the cosmos, Seiko has just bottled that starry wonder into two stunning new timepieces. Following their global reveal in mid-December, the brand has officially opened retail sales for two highly anticipated limited-edition Astron GPS Solar models in Singapore. These watches aren't just about telling time; they're about capturing the essence of a galaxy on your wrist, all while offering the cutting-edge convenience Seiko's Astron line is famous for.
Available now on Seiko’s Singapore website, both models share a breathtaking, textured blue dial that evokes the deep, infinite expanse of space. Crafted from lightweight titanium for superior comfort, they represent a perfect fusion of celestial inspiration and terrestrial technology. Let's dive into what makes each of these limited-run pieces unique.
The Feature-Packed Chronograph: Seiko Astron SSH187J1
For the enthusiast who demands peak functionality, the Seiko Astron SSH187J1 stands as the pinnacle of this duo. This is a serious tool watch powered by Seiko’s advanced GPS Solar calibre 5X83. Just a few minutes of sunlight powers the watch for months, while its GPS receiver automatically adjusts the time and timezone as you travel, ensuring absolute accuracy anywhere on Earth.
Key features of the SSH187J1 include:
- A sophisticated dual-time chronograph that can measure events up to 12 hours in precise 1/20-second increments—perfect for timing more than just a lap.
- A perpetual calendar that is pre-programmed and accurate until February 2100, so you’ll never need to manually adjust the date.
- A robust yet lightweight 43.3mm titanium case with a sleek ceramic bezel and a hard coating for scratch resistance.
- 100 meters of water resistance, making it capable of handling swimming and snorkeling with ease.
With only 1,500 pieces available worldwide, this chronograph is a statement piece. It is priced at SG$4,033 on Seiko Singapore's official site.
Discover the dual-time chronograph in detail: Seiko Astron SSH187J1 at Seiko Boutique Singapore
The Sleek Three-Hand Alternative: Seiko Astron SSJ039J1
If your taste leans towards elegant simplicity, the Seiko Astron SSJ039J1 offers the same cosmic beauty in a cleaner, three-hand format. It’s driven by the efficient GPS Solar calibre 3X62, providing essential Astron intelligence in a more streamlined package.
This model focuses on core travel-ready features:
- Automatic GPS time and timezone adjustment upon command.
- A clear date display and a handy power reserve indicator so you always know how much charge is left.
- The same foolproof perpetual calendar as its sibling.
- A slightly more compact 42.0mm titanium case that is a slender 12.0mm thick, offering a discreet and comfortable fit.
Also limited to a global production of 1,500 units, the SSJ039J1 is listed at SG$3,488. It’s the perfect choice for those who want Astron’s groundbreaking technology in an understated, everyday elegant design.
Explore the three-hand model here: Seiko Astron SSJ039J1 at Seiko Boutique Singapore
Shared Excellence & Limited Availability
Despite their different personalities, both watches are united by exceptional finishing. They come on matching black-finished titanium bracelets and feature sapphire crystals with an anti-reflective coating for stunning clarity in any light. The luminous hands and markers ensure legibility, whether you’re under city lights or actual starlight.
It’s worth noting that these are part of a larger four-watch release from December. While the radio-controlled SBXY105 and SBXY107 models are expected soon, the two GPS Solar models highlighted here are the ones currently available for purchase.
Given their limited nature and striking design, interest is expected to be high. A quick check of the product pages already suggests limited stock, so these celestial-inspired timekeepers may not stay available for long. For collectors and watch lovers in Singapore, now is the time to act to secure one of these 1,500-piece galactic treasures.
Looking for other Seiko Astron options? You can also find a selection of models, including previous limited editions, on major retail platforms. Check current prices and availability for Seiko Astron watches on Amazon.

