Astron Solar GPS Chronograph ‘Solidity’

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This item will be released July 31, 2022.
Movement TypeGPS Solar
Accuracy±15 seconds per month (±1 second per day)
Case MaterialTitanium (Super Hard Coating)
Case Diameter42.7mm
This watch will be available in July


Seiko Astron: the world’s first GPS solar watch – powered by light, automatically adjusted to your time zone through the latest GPS technology. This timepiece is named “Solidity” for the continuing relevance of its technological design.

This Astron Solar GPS watch features the 5X calibre with advanced functionality.

To enhance the speed and quality of the GPS connection, every component in the GPS module has been re-engineered, the operation of the 5X calibre is faster and more intuitive than ever.
For example, in just three seconds the time can advance 14 hours from Tokyo to New York time, thanks to the system that moves the hour, minute, and second hand independently.

New functions allow easy adjustment to Daylight Savings Time with the push of a button and give the wearer the ability to switch the main dial instantly from home to local time and vice versa.


Accuracy: ±15 seconds per month (±1 second per day)
Calibre: 5X53
Movement Type: GPS Solar
Battery Life: Operating for approx. 6 months (when fully charged)
Watch Case
Case Material: Titanium (Super Hard Coating)
Case Thickness: 12.22mm
Case Diameter: 42.7mm
Case Length: 48.0mm
Dial Colour: Blue
LumiBrite: Lumibrite on hands and indexes
Clasp: Three-fold clasp with push button release
Strap/Bracelet: Titanium
Other Specifications
Water Resistance: 10 bar
Crystal Coating: Super-Clear Coating
Crystal Type: Sapphire
Other Specifications: Perpetual calendar until 28th February 2100
Watch Function: GPS, Solar

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