Seiko Astron. The Most Advanced Ever. Since 2012, Seiko Astron has led the world in GPS Solar technology. Today, the Astron GPS Solar collection includes atomic-clock precision and exceptional ease of use. By connecting to the GPS network, Seiko Astron adjusts to your time zone and takes all the energy it needs from light alone, never needing a battery change.   
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Chronograph
Seiko Astron Solar GPS Chronograph ‘Solidity’ Watch - SSH111J1

Seiko Astron Solar GPS Chronograph ‘Solidity’ Watch - SSH111J1

R 55,950.00
Calibre Calibre Type: Solar - Powered By Any Light Source Calibre Function: GPS Dual Time Accuracy: +/-1 second every 100,000 years (with daily automatic time adjustment) Power Reserve/Battery Life: Operating for approx. 6 months...
Seiko Astron Solar GPS Chronograph ‘Solidity’ Watch - SSH107J1

Seiko Astron Solar GPS Chronograph ‘Solidity’ Watch - SSH107J1

R 55,950.00
Calibre Calibre Type: Solar - Powered By Any Light Source Calibre Function: GPS Dual Time Accuracy: +/-1 second every 100,000 years (with daily automatic time adjustment) Power Reserve/Battery Life: Operating for approx. 6 months...