ASTRON
The world’s first GPS solar watch.
It recognizes all time zones on earth.
Seiko Astron can receives GPS signals and
It identifies the time and time zone from the global network of
Time and Space are harnessed by the new Astron.

SEIKO ASTRON

In 1969, Seiko Quartz Astron, the world's first quartz watch was launched.

It was accurate to within 5 seconds per month,100 times more accurate than any other watch, and its low-drain movement allowed it to run continuously for a year, or 250 times longer than most mechanical watches.

Seiko Quartz Astron was a revolutionary wristwatch that changed timekeeping forever.

Today, the new Astron delivers another breakthrough in watch technology – a quartz watch with accuracy of one second every 100,000 years and time zone adjustment.

Feature

1. At last, a watch that adjusts to your time zone.

Astron is a world's first.

It recognizes all time zones on earth.

2. The hands adjust automatically
 to the local.

With only one touch of a button, Astron adjusts to the correct local time everywhere on the planet. * Daylight Saving Time function requires manual operation.

3. Always accurate.

Seiko Astron is accurate to one second every 100,000 years, thanks to the time signal it receives from the Atomic Clocks in each GPS satellite.

4. Astron Never stops.

Astron receives all the power it needs from light absorbed through the dial. It uses all kinds of light and there is a power reserve indicator to show the amount of energy stored.

5. Astron receives the time signal
 even on the move.

Astron receives GPS signals even when the wearer is walking or in a vehicle. If you can see the sky, you can tell the exact local time, even on the move.

6. Calendar correction is automatic.

Astron has a Perpetual Calendar that is correct until February 28, 2100.

* The watch has to be under an open sky with good visibility, where the GPS signals can easily be received.   
* If the time zone is adjusted near a time zone boundary, the time of the adjacent time zone may be displayed. To adjust the time zone, use the manual time (city) zone selection mode.

High-intensity titanium models,
Stainless steel models

High-intensity titanium models SAST003 Case : High-intensity titanium
Bezel : Ceramic
Band : High-intensity titanium

High-intensity titanium models,
Stainless steel models

High-intensity titanium models SAST005 Case : High-intensity titanium
Bezel : Ceramic
Band : High-intensity titanium

High-intensity titanium models,
Stainless steel models

High-intensity titanium models SAST007 Case : High-intensity titanium with black hard coating
Bezel : Ceramic
Band : High-intensity titanium with black hard coating

High-intensity titanium models,
Stainless steel models

High-intensity titanium models SAST015 Case : High-intensity titanium
Bezel : Ceramic
Band : High-intensity titanium with Ceramic

High-intensity titanium models,
Stainless steel models

High-intensity titanium models SAST017 Case : High-intensity titanium
Bezel : Ceramic
Band : High-intensity titanium with Ceramic

High-intensity titanium models,
Stainless steel models

High-intensity titanium models SAST019 Case : High-intensity titanium
Bezel : Ceramic
Band : High-intensity titanium with Ceramic

High-intensity titanium models,
Stainless steel models

Stainless steel models SAST009
Case: Stainless steel
Bezel: Ceramic
Band: Extra-strength silicon

High-intensity titanium models,
Stainless steel models

Stainless steel models SAST011
Case: Stainless steel with black hard coating
Bezel: Ceramic
Band: Extra-strength silicon

High-intensity titanium models,
Stainless steel models

Stainless steel models SAST021
Case: Stainless steel
Bezel: Ceramic
Band: Stainless steel

High-intensity titanium models,
Stainless steel models

Stainless steel models SAST023
Case: Stainless steel
Bezel: Ceramic
Band: Stainless steel

High-intensity titanium models,
Stainless steel models

Stainless steel models SAST025
Case: Stainless steel with black hard coating
Bezel: Ceramic
Band: Extra-strength silicon

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* High-intensity titanium :
The case’s high-intensity titanium is stronger than
stainless steel but has only 60% of its weight.

ASTRON High-intensity titanium models

Design

Astron is a watch that unites time and space as never before,
and whose design reflects the grandeur of this technical achievement.

High-intensity titanium models, Stainless steel models

Look into the dial and you see both the darkness and the depth of space.

New Astron Design

As the stratosphere surrounds the earth, The domed sapphire covers the Astron dial.

2014 Limited Edition

Revolution forges ahead. A styling with a feeling of speed is fascinating and makes it really special.

Novak Djokovic Limited Edition

The unique characters create the sophisticated and sporty atmosphere.

Spec

Caliber : 7X52

Glass :
Sapphire crystal with Super-Clear Coating* (SAST003, 005, 007, 015, 017, 019, SAST009, 011, 021, 023, 025)
Dual curve box shaped sapphire crystal with anti-reflection coating on inner surface (SAS031, 032, 033, 035, 037, 038)

Water resistance: 10 bar

Magnetic resistance : 4,800 A/m

Case diameter :
47.0 mm, thickness : 16.5 mm(SAST003, 005, 007, 015, 017, 019, SAST009, 011, 021, 023, 025)
48.2 mm, thickness : 18.1 mm(SAS031, 032, 033 035, 037, 038)

GPS controlled time and time zone adjustment
Perpetual calendar correct to February 2100
Signal reception result indication
World time function (40 Time Zones)
Daylight Saving Time function
Power save function

Accuracy :
+/-15 seconds per month (without receiving a time signal and at temperatures between 5℃ and 35℃)

Caliber : 8X82

Glass : Sapphire crystal with Super-Clear Coating*

Water resistance : 10 bar

Magnetic resistance : 4,800 A/m

Case diameter :
45.0 mm, thickness: 13.3 mm(SSE001)
44.6mm, thickness: 13.3mm(SSE022)

GPS controlled time and time zone adjustment
Chronograph up to 6 hours in 1/5 second increments
Perpetual calendar correct to the year 2100
Signal reception result indication
World time function (40 Time Zones)
Daylight Saving Time function
Power save function

Accuracy: +/-15 seconds per month (without receiving a time signal and at temperatures between 5℃ and 35℃)

**Super-Clear Coating
Seiko’s proprietary newly-developed anti-reflective coating, applied on both the front and back of the glass.
It prevents 99% of light reflection and allows the dial to be easily legible, even in bright light.