Seiko Astron GPS Solar 145th Anniversary Limited Edition SSH186J1

Seiko Astron 145th Anniversary Limited Edition - Golden Grace meets cosmic accuracy

145 years of invention – honoured in gold

With the SSH186J1 limited to 1,450 pieces, Seiko celebrates the 145th anniversary of the brand – a tribute to the founder Kintaro Hattori and his aim to always be a step ahead of time. The anniversary edition combines forward-looking craft with noble symbolism: gold-coloured accents adorn the dial, bezel, and link bracelet – as a symbol of success, steadfastness, and heritage.

Astron technology for the future

Inside works the advanced calibre 5X83, a GPS solar movement with dual-time function, world time, and perpetual calendar until 2100. The watch synchronises worldwide with GPS time signals and adjusts to the second – all without battery changes. A full charge provides 6 months power reserve in normal use, and in power-saving mode even 2 years.

Refined anniversary details

The sapphire crystal bezel appears three-dimensional and is subtly turned into a birthday watch by golden index marks at 1, 4, and 5 o’clock – a hidden reference to the 145-year company anniversary. The dial itself appears in noble anthracite with a rich sheen, while golden subdials and hands stand out clearly. This special composition elegantly distinguishes itself from previous Astron models.

Comfort and resilience

The SSH186J1 is protected by a double-curved sapphire glass with super-clear coating, which minimises reflections and ensures perfect readability. The titanium case with hard coating is sturdy, light, and hypoallergenic. With 10 bar water resistance, magnetic field resistance, and a screw-down crown, the watch is a confident companion in everyday life.

Technical highlights

• Calibre: 5X83, GPS solar

• Power reserve: 6 months when fully charged, 2 years in power-saving mode

• Functions: dual-time, stopwatch, world time (38 cities), perpetual calendar, power reserve, flight mode, automatic hand adjustment

• Case: titanium with hard coating, Ø 44.1 mm, height 14.4 mm

• Bezel: sapphire crystal, with gold-coloured anniversary markings

• Glass: double-curved sapphire glass with super-clear coating

• Water resistance: 10 bar

• Magnetic resistance: 4,800 A/m

• Bracelet: titanium with safety folding clasp, length 190 mm

• Limitation: 1,450 pieces worldwide

A watch for all who lead the way

The SSH186J1 embodies Seiko’s tireless spirit of invention – in craft, style, and symbolism. It is a limited watch for collectors and pioneers who carry history on their wrist and are at the same time ready for the future. Those who know Seiko understand: This watch is not only a celebration of the past – it is an invitation to forge new paths.