SEIKO ASTRON SSJ039J1 SPIRAL GALAXY LIMITED EDITION GPS SOLAR CHRONOGRAPH MEN WATCH

Seiko Astron SSJ039J1 — Spiral Galaxy Limited Edition GPS Solar

The Seiko Astron SSJ039J1 is one of only 1,500 pieces produced worldwide — a limited edition GPS solar timepiece themed "Solidity," symbolising Seiko's innovative spirit since its founding in 1881. Part of a series drawing inspiration from the solar system, the SSJ039J1 is inspired specifically by Earth — and its dial is among the most technically and artistically ambitious in the Astron collection.

The distinctive spiral galaxy pattern in dark turquoise blue is particularly difficult to achieve on a solar cell while maintaining charge efficiency — a genuine feat of engineering as much as design. The glittered effect across the dial surface depicts stars in deep space, the all-black super hard coated titanium case and ceramic bezel evoke the darkness of the galaxy itself, and the mirror-effect centre bracelet links create an almost seamless flow from case through lugs to bracelet. At just 12mm thick and 41.2mm wide, it wears with a slim, contemporary presence entirely at odds with the complexity within.

Powered by the in-house 3X62 GPS solar calibre — accurate to ±1 second every 100,000 years with daily automatic GPS time zone adjustment — the SSJ039J1 represents the convergence of Seiko's most advanced movement technology and its most ambitious dial artistry. With only 1,500 pieces worldwide, this is a watch that belongs in a collection.

Key Features

• Seiko 3X62 GPS solar movement — pinpoints your exact time zone by receiving signals from 4 or more GPS satellites
• Accuracy: ±1 second every 100,000 years with daily automatic GPS time adjustment — the most accurate wristwatch technology available
• Approx. 6-month power reserve at full charge; approx. 2-year power save reserve — exceptional solar efficiency
• Power reserve indicator — monitor remaining charge at a glance
• Perpetual calendar — automatically adjusts for short months and leap years until February 2100
• Date display — everyday practicality built in
• Spiral galaxy turquoise blue dial with glittered star effect — technically complex solar cell dial, unique in the Astron collection
• All-black super hard coated titanium case — lightweight, strong, and exceptionally durable
• Ceramic bezel — scratch-resistant and precisely finished
• Sapphire crystal with super clear coating — premium scratch resistance and superior optical clarity
• 41.2mm × 12.0mm slim profile — contemporary, angular design with seamless case-to-bracelet flow
• Black titanium bracelet with mirror-effect centre links — lightweight and refined with micro-adjustable clasp
• Lumibrite on hands and markers — superior low-light legibility
• Pull-out crown — straightforward time and date setting
• 100M water resistance — swim-ready and built for active lifestyles
• Limited edition — only 1,500 pieces produced worldwide

Why You'll Love It

The SSJ039J1 is among the most visually extraordinary Seiko Astron watches ever produced — and one of the rarest. The spiral galaxy dial in dark turquoise blue is not merely decorative; it is an engineering achievement, created on a functioning solar cell without compromising the charge efficiency that powers the 3X62 GPS calibre within. The glittered star effect gives it a depth and movement that photographs cannot fully capture — it changes character in different light, which is precisely what a dial inspired by the cosmos should do. The all-black titanium case and ceramic bezel give it a gravity and presence on the wrist that belies its 12mm slim profile. GPS accuracy to ±1 second every 100,000 years, a perpetual calendar running to 2100, and up to 6 months of solar reserve mean the technology matches the artistry. With only 1,500 pieces worldwide, the SSJ039J1 will only become more significant with time.

The Seiko Astron Story

Seiko Astron is the world's first GPS solar watch — powered by light and automatically adjusted to your exact time zone through satellite technology. Since the first Astron was introduced in 1969 as the world's first quartz watch, Seiko has continuously pushed the boundaries of what a wristwatch can do. The GPS Solar Astron, launched in 2012, represented a new frontier — a watch that never needs setting, never runs out of power in normal use, and is accurate to a standard no mechanical or conventional quartz watch can match. The SSJ039J1 Spiral Galaxy represents the meeting point of that technical ambition and Seiko's artistic heritage — a limited edition that is as much a statement of what is possible as it is a timepiece.

Backed by Seiko's official warranty. Authentic Seiko Astron limited edition watch, sold by authorised retailer City Chain Singapore.

Also available as a 145th Anniversary Limited Edition — shop the SSH186J1. Explore the full Seiko Astron Collection or browse all Seiko watches at City Chain Singapore.