SEIKO Astron SSE139J1 Specifications :
|Driving System||GPS Solar|
|Case Coating||Super-hard coating|
|Glass Material||Sapphire crystal|
|Glass Coating||Super-clear coating|
|Band||Titanium with super-hard coating|
|Waterproof||Water resistance 10 Bar|
|Antimagnetic||Magnetic resistance 4,800 A/m|
|Features||GPS controlled time and time zone adjustment|
Dual-Time with AM/PM indication
Perpetual calendar correct to the year 2100, Signal reception result indication
World time function (39 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℃)
Three-fold clasp with push button release
The Astron dress watch has arrived
8X42 offers the remarkable ability to adjust to local time, anywhere* in the world, at the touch of a button and using just the power of light. With the addition of the big date window, the inclusion of a dual-time dial at the six o’clock position and new, slimmer hands, the new designs have a refinement that makes them as perfect for an evening out as they are for international travel. With several versions featuring roman numerals and with more components having mirror-finished surfaces, the Astron dress watch has truly arrived.
*If there are changes in the region / time zone, manual time zone selection may be required.
Dynamic movement of the hands, which can sense the connection with satellites
When GPS signals are received, the second hand starts moving, indicates the number of satellites, and then displays the current time.
It is an emotional moment, feeling an identification with GPS satellites 20000km away.
The classic big date calendar
The new Astron 8X42 caliber features the classic big date window and the roman numerals for the first time in any Astron design while shares all the core characteristics of the hugely successful 8X calibers. The Astron Big-Date adds a new note of relaxed elegance to the Astron design.
- A stylish and luxury indexes
Metal indexes adopted to complement the hands are finished separately to provide enhanced metallic texture and luxuriousness.
- Hand-polished case
The cases are polished by hand to be distortion-free, using Seiko’s unique Zaratsu technique, so that there is sharpness in every light reflection.
- Intuitive operation
The operation of the watch is made simple by the electronic setting function in the crown.
- Super-clear Coating, Super-hard Coating
A super-clear coating, a super-hard coating has been applied on cases and bracelets.
*It varies depending on the model.
- The world’s first GPS solar watch
By connecting to the GPS network, the new Astron adjusts at the touch of a button to your time zone* and, by taking all the energy it needs from light alone, never needs a battery change.
*For the time zone information of your caliber, please refer to here. If there are changes in the region/time zone, manual time zone selection may be required.
- Automatic Time adjustment
Whenever the dial is exposed to bright light, the watch automatically receives GPS signals. When the watch is concealed under a sleeve and the dial cannot receive enough light, the watch stores the time of the previous successful manual time adjustment or time zone adjustment, and automatically starts time adjustment at the same time.
- High reception performance of an exclusive Seiko ring antenna
An exclusive Seiko ring antenna placed under the dial ring is suitable for automatic reception as it can easily receive signals regardless of posture.
- In- flight mode
In order to avoid any interference with the operation of electronic devices in an airplane, in-flight mode is available when boarding a plane. In the in-flight mode, the GPS signal reception function will not work.
- DST (Daylight Saving Time)
In areas where DST (Daylight Saving Time) applies, the time can be adjusted manually.