SEIKO ASTRON SSH186J1 145TH ANNIVERSARY LIMITED EDITION MEN WATCH

Seiko Astron SSH186J1 — 145th Anniversary GPS Solar Limited Edition

The Seiko Astron SSH186J1 is one of only 1,450 pieces produced worldwide to commemorate the 145th anniversary of Seiko — tracing its origins to a clock and watch shop founded in Ginza, Tokyo in 1881 by Kintaro Hattori. This limited edition timepiece draws design and watchmaking inspiration from pivotal moments in Seiko's history, reinterpreted through the lens of the brand's most advanced technology and crowned with gold-coloured accents that honour the heritage within.

The dial concept is a solar eclipse — the black dial representing the moon passing before the sun, with gold-coloured accents evoking the glimmers of light breaking through the darkness at totality. Encased in super hard coated titanium under dual-curved sapphire crystal with super clear coating, the SSH186J1 is as technically exceptional as it is visually dramatic. The polygonal bezel, slim profile, and seamless case-to-bracelet flow give it a contemporary, angular character that is unmistakably Seiko Astron.

Key Features

• Seiko 5X83 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
• 1/20th of a second chronograph — measures elapsed time up to 12 hours with exceptional precision
• Dual time capability — bottom subdial adjustable to a second time zone; main hands manually adjustable to different time zones
• Perpetual calendar — automatically adjusts for short months and leap years until February 2101
• Day-date display — full calendar functionality built in
• Solar eclipse inspired black textured dial — gold-coloured accents representing light at totality
• 44.1mm super hard coated titanium case — lightweight, strong, and exceptionally durable
• Dual-curved sapphire crystal with super clear coating — premium scratch resistance and superior optical clarity
• Five-piece black and gold titanium bracelet — lightweight, refined, and designed with a low centre of gravity for all-day comfort
• Polygonal bezel with seamless case-to-bracelet flow — contemporary angular design with a slim profile
• AM/PM indicator — clear 12-hour cycle reference
• 100M water resistance — swim-ready and built for active lifestyles
• Limited edition — only 1,450 pieces produced worldwide

Why You'll Love It

The SSH186J1 is among the most technically and artistically significant Seiko Astron watches ever produced. The 5X83 GPS solar movement delivers accuracy to within 1 second every 100,000 years — automatically adjusted to your exact location via satellite, anywhere on Earth. The solar eclipse dial concept is one of the most striking in Seiko's recent history, the super hard coated titanium construction keeps it featherlight on the wrist despite the 44.1mm presence, and the 1/20th of a second chronograph adds a layer of sporting utility to an already exceptional specification. With only 1,450 pieces worldwide, this is a watch that will only become more significant with time — a genuine collector's piece and a milestone in Japanese watchmaking history.

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. The story begins in 1881, when Kintaro Hattori founded a clock and watch shop in Ginza, Tokyo — the business that would become the Seiko of today. 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 that no mechanical or conventional quartz watch can match. The SSH186J1 marks 145 years of that relentless pursuit of precision, wrapped in a design concept as dramatic as the history it commemorates.

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

Explore the full Seiko Astron Collection or browse all Seiko watches at City Chain Singapore.