Precise timekeeping. Anywhere. Any time.
Satellite Wave GPS, a unique CITIZEN technology, receives position data and
a time signal from orbiting GPS satellites to automatically update your watch to
the correct date and time. Incorporating CITIZEN's Eco-Drive light-powered technology,
the Satellite Wave GPS provides you with the precise time, wherever you are in the world,
as long there is open sky above you.
Super Titanium™ is around half the weight of stainless steel, making it very comfortable on the wrist. Whether you're working, doing the housework or just having fun, its lightness will make life that much easier CITIZEN Satellite Wave GPS* has coverage in 38 of the world's time zones.* It receives position data and a time signal from GPS satellites orbiting the Earth at an altitude of 20,000km to display the correct time for your precise location, wherever you are. Out in the desert, on a snowy mountain top, or out at sea, you can get the correct current time for that specific location.
* GPS is an acronym for Global Positioning System
* Time zone coverage varies by model.
Precise time, wherever you are
Imagine driving across a continent like Australia or the United States where you must cross multiple time zones. Wherever you go, Satellite Wave GPS* syncs to GPS satellites to acquire position data and a time signal at the simple push of a button. Using this data to work out which time zone you are in, it sets your watch to the correct time for where you are at that moment. Pass through multiple time zones in confidence that your watch is displaying the correct local time.
* GPS is an acronym for Global Positioning System
* Getting position data requires a minimum of 30 seconds. Switching to daylight saving time must be done by hand.
Experience accuracy. Any time.
All CITIZEN Satellite Wave GPS* models tell the time with a high level of accuracy of ±5 seconds per month. They express CITIZEN's desire to provide the precise time with no need for adjustment. In fact, CITIZEN was the first watch company in the world to achieve time signal reception as fast as 3 seconds.* We made it possible to reset the time whenever you want; all you need is open sky overhead.
* GPS is an acronym for Global Positioning Systems.
* In 2015, CITIZEN was first in the world to achieve a reception time as fast as three seconds for a light-powered GPS satellite watch.
In 1993, CITIZEN released the world's first multi-band radio-controlled watch.
Capturing time signals from atomic clocks accurate to 1 second every 100,000 years,
Radio-Controlled auto-corrects the time and calendar. Combining CITIZEN's
light-powered Eco-Drive technology, the result is ultraprecise timekeeping
with no need to replace batteries or adjust the time.
Margin of error: Astounding.
The atomic clocks from which Radio-Controlled watches receive their time signals are accurate to an astonishing margin of one second every 100,000 years. By synchronizing with the most accurate time source in existence, your watch will always tell you the precise time. Any time.
The right time. Everyday.
Eliminate the hassle of frequently adjusting your watch. Radio-Controlled does away with all that anxiety and fuss. In the middle of the night when the noise from smartphones is at a minimum, it automatically synchronizes to the correct time. Radio-Controlled technology lets your watch fine-tune itself every day of the week so that you don't need to worry about resetting it anymore. Ever.
Time signal reception technology
Radio-controlled technology automatically corrects the time and calendar by receiving standard radio waves transmitted based on an "atomic clock" that has an accuracy of 1 second in 100,000 years.
*Applies to models that support global multi-station reception.
* The figure is a guideline for the reception range.
* The map representation and the circle indicating the transmission range of the standard radio wave are an image, and do not guarantee the radio wave reception range.
* The receivable range varies depending on the model.
* Radio waves may not be received accurately in places where radio noise is likely to occur or in environmental conditions where radio waves are difficult to reach.
* Depending on the country or region, the time difference and city names may change.
It is a high-sensitivity radio wave reception system that supports 3 areas around the world, equipped with "Perfex" technology for clocks that do not shift. As a radio clock with a full metal exterior, it receives standard radio waves with high sensitivity in Japan, the United States, and Europe. Especially in the United States, it is possible to receive signals within a radius of about 3,000 km from a transmitting station in Colorado. Combined with Perfetex, this is Citizen's original technology that further pursues the accuracy of a radio-controlled watch.
The three functions for precise timekeeping
CITIZEN has developed a proprietary technology that makes precise timekeeping possible by combining three functions: an antimagnetic function, an impact detection function and an automatic hand correction function.
Receives signals in 3 geographic regions*
Radio-Controlled through the years
"Precise time" is an eternal theme.
In 1989, Citizen began developing a watch that displayed the correct time using radio-wave reception, aiming for the eternal theme of watch manufacturers, "precise time". This development was a challenge for Citizen from scratch, and there were many technical issues. Without equipment for development, we installed an antenna by the window, checked the reception status of radio waves, and started by manufacturing measuring instruments in-house to evaluate reception performance. We worked on original development of IC for reception and miniaturization of antenna.
After overcoming various challenges, Citizen created the world's first multi-station radio-controlled watch. Since the antenna, which affects the reception sensitivity, is easily affected by the metal case and metal parts, we took the opposite approach and put the function of "receiving radio waves and moving" to the front, placing the antenna in the center of the dial. design was adopted.
Citizen developed the world's first radio-controlled watch equipped with a light-powered Eco-Drive.
The antenna is placed on the side of the case on the 9 o'clock side to improve reception performance and design. In addition, automatic reception of time information and photovoltaic power generation have eliminated the hassle of time adjustment and periodic battery replacement.
The radio-controlled watch developed into a design that did not look like a radio-controlled watch. After a model with a built-in antenna in a resin case on the body side, in 2001 we developed a model with a built-in ceramic exterior antenna and a model with eco-drive for power saving. In 2003, the development of the world's first full-metal-case radio-controlled watch, which was thought to be impossible at the time, was achieved in 2003, thanks to a significant increase in reception sensitivity achieved by improving the antenna and receiving circuit.
Since the announcement of the full metal case radio clock in 2003, "radio clock" has been one of Citizen's core technologies, aiming to be even smaller, thinner, beautiful, and installed in a wide range of models.