Seiko SAST009G Men's Astron GPS Solar Silicone Strap Watch, Black

Product information

The world's first GPS solar watch, the Seiko Astron is designed for truly global, accurate timekeeping. Astron synchs to all 39 time zones on earth.

The time signal can be received any where you can see the sky to receive a signal. To keep your watch running on the move, Astron automatically recharges itself using artificial light - including natural sunlight and low office lighting.

Other features include:

  • Perpetual calendar
  • Atomic Timekeeping
  • Date window at 3 O'clock
  • Black silicone strap
  • World timer
  • Glowing hands
  • Glowing hour markers
  • Power Reserve Indicator
  • 24 Hour Subdial
  • Sapphire Glass
  • Black dial

Face Dia.4.7cm
Eligible for International Delivery
Face Shape
Manufacturer's Guarantee
2 years
Strap Material
Rubber or silicone
Strap Style
Watch Finish
Watch Range
Astron GPS
Water Resistant


Click & collect

Free Click & Collect from John Lewis and Waitrose shops for collection tomorrow from 2pm
309 participating John Lewis and Waitrose shops

Standard UK delivery within 5 working days


Next, named or Saturday UK delivery.


Next/named working day UK delivery pre-10.30am.


Collect+ from a local shop from Monday - postcode exclusions apply for Collect+ deliveries

5000+ participating Collect+ shops

International delivery not available


We want you to be happy with your purchase. If you're not, just return the products to us or to one of our shops. Unless faulty, we'd like this to be within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.

Depending on the type of product, you can make free returns via our shops, Royal Mail (or courier collection for large or heavy items), Collect+ or via MyHermes.

Find out more about returning products

Q & As


Seiko SAST009G Men's Astron GPS Solar Silicone Strap Watch, Black 5 5 1 1
Technology at its finest A watch with a built in GPS! Why has no one thought of it before? Wherever you are in the world, it will adjust ot the correct time - exquisite. I saw this at Salon QP in London in November and not only did its looks blow me away but the functionality and the price are hard to beat too. It really is a must-have if you travel regularly; even if you don't, it will still be a thing of beauty on your wrist. 03 December 2012
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Additional services

  • 2 year guarantee included

Out of stock