Astron “Brilliance” 5X GPS Solar Chronograph Limited Edition ‘Kintaro Hattori’ – 100th Anniversary of Seiko


This item will be released June 1, 2024.
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This watch will be available in June


This limited-edition design, one of only 1,000 pieces available worldwide, adds to a series of commemorative timepieces created to celebrate 100 years of the Seiko name on a watch.

For a century, Seiko have innovated in watchmaking, crafting timepieces that continue to offer brilliance today. Brilliance is the theme of this Astron, named after the founder of Seiko: Mr Kintaro Hattori.

The design of this piece was inspired by the view of earth at night from a space satellite.
Within a black super hard titanium-coated case, a dual sapphire glass crystal reveals a dark black dial with a vertical subdial layout – a first for Astron. This modern model has its own contemporary feel, with sleek lines, slim profile, and compact, angular design. It has an almost seamless flow from the case, through the lugs and to the titanium bracelet, whilst its black ceramic and multifaceted bezel features gold plating. This piece was designed to have a low centre of gravity, making it fit well on the wrist. The gold case back feature Kintaro Hattori’s name, the iconic ‘S’ symbol, and his lifelong motto. The limited-edition number will also be inscribed on the case back.

It features a new 5X83 solar-powered movement, that not only charges efficiently, but also features a one twentieth 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.

This limited-edition piece will come in a special edition box, with a black silicone strap option and an ‘S’ symbol pin lapel badge.

Seiko Astron: the world’s first GPS solar watch – powered by light, automatically adjusted to your exact time through the latest satellite technology.


Accuracy: ±15 seconds per month (±1 second per day)
Calibre: 5X83
Movement Type: GPS Solar
Power Reserve: Operating for approx. 6 months (when fully charged), power save: approx. 2 years
Jewels: 14
Dial Colour: Black
LumiBrite: Lumibrite on hands and indexes
Case Material: Titanium with ceramic/titanium bezel
Strap/Bracelet: Titanium
Clasp: Three-fold clasp with push button release
Case Diameter: 43.3mm
Case Thickness: 13.4mm
Case Length: 49.5mm
Lug Width: 14.0mm
Other Specifications
Water Resistance: 10 bar
Crystal Coating: Super-Clear Coating
Crystal Type: Dual-curved sapphire crystal
Other Specifications: LIMITED EDITION on the case back, Screw case back, Serial number engraved on the case back, Clasp with Smart Adjuster function
Watch Function: Automatic hand position alignment function, Chronograph up to 12 hours in 1/20 second increments, Day display, DST (Daylight Saving Time), Dual-time function, Function to prevent the GPS signal reception (in-flight mode), GPS signal reception function (Time zone adjustment, automatic time adjustment, manual time adjustment), Overcharge prevention function, Perpetual calendar to the february 28, 2100, Power reserve indicator, Power save function, Reception result display function, Satellite acquisition status display function, Time transfer function (Switching between the main-dial and sub-dial), World time function (39 time zones)
Magnetic Resistance: 4,800 A/m

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