Seiko Astron SSH021 GPS Solar Quartz Dual Time Stainless Steel Black Dial


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Today, 50 years after the Seiko Quartz Astron ushered in the quartz revolution, the enduring popularity, ubiquity and versatility of this remarkable technology have all been proven beyond any expectation. The Quartz Astron changed the way the world told time, astonishing people with its accuracy of +5 to -5 seconds per month. It also shaped the whole future of the electronics industry as several of its inventions, including the tuning fork shaped quartz oscillator, are still used in an extraordinary range of horological and non-horological devices alike, from clocks to personal computers to mobile phones. It is no exaggeration to say that, since 1969,
Seiko’s quartz technology has touched the lives of nearly all mankind and continues to play a central role in our ever-changing modern world.

A new Astron GPS Solar 5X series pays homage to the uniqueness of the first Quartz Astron of 50 years ago in both its design and in its technological advancement.
Your Astron 5X watch adjusts automatically to the exact time, up to twice a day. If it can see the sky, it will connect with one or more GPS satellites and re-set the time, if needed, to a precision of one second every 100,000 years*. Even if the watch cannot see
the sky, it remembers when it was last successful in receiving a time signal and automatically attempts to receive a signal.
Seiko Astron GPS Solar Dual-Time
Caliber 5X53
  GPS controlled time and time zone adjustment
  Dual-Time with AM/PM indication
  Perpetual calendar correct to the year 2100
  Automatic DST adjustment function
  High Speed Time Zone Adjustment
  Time Transfer Function
  Signal reception result indication
  World time function(39 time zones)
  Power save function
  Accuracy: +/-15 seconds per month(without receiving a GPS signal
  and at temperatures between 5°C and 35°C)
  Stainless steel case and bracelet with super-hard coating(SSH019/021)
  Stainless steel case and bracelet with super-hard black coating.
  An extra-strength silicone strap is attached.(SSH023)
  Stainless steel case with super-hard rose gold color coating(SSH024)
  Ceramic bezel(SSH023)
  Dual-curved Sapphire crystal with super-clear coating
  Water resistance: 10 bar
  Magnetic resistance: 4,800 A/m
  Diameter: 41.4mm, Thickness: 13.3mm(SSH019, 021, 024)
  Easy adjust three-fold clasp with push button release(SSH019, 021, 023)
  Silicone strap(SSH024)