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Excellent article on utilizing Japan aesthetics and craftsmanship with cutting-edge technology. This series is the world's thinnest eco-drive radio controlled clock, made of titanium.
Titanium is said to be very hard working proud citizen titanium machining technology, realized the case thickness mm 6.96 (design value)!
It is a high-performance luxury watch exactly what citizen technologies are concentrated. Design a simple letter boards with double-sided anti-reflective coating Safire galas of visual legibility. Letter plates situated mother-of-Pearl, produce a sense of luxury. Titanium band polished one frame for each notch of exuberant sense of quality.
Has also become a citizen very scratch-resistant hard technology, duratek to coating the more gentle on skin of titanium in nickel allergy resistant products.
Because, in addition to further improve reliability of the radio controlled clock "perfex" and in high-dimensional signal receiving ability and magnetic resistance, both had been difficult in antenna embedded radio clock and "JIS class 1 antimagnetic watch" has achieved.
Also that a shock from the outside, by the IC controlling the second hand, minute hand, needle is the strongest orthodox sect Watch has to avoid disappointing impact detection features, needle correction correction to instantaneous sensor 60 seconds every needle position is detected with the IC in the time counter have been incurred.
And the [eco]
Eco-drive is a light powered watch battery replacement. Solar light focused on the clock passes the glass the dial plate, located below convert light into electrical energy stored in rechargeable batteries and drive the clock. Even where no light to recharge once the eco-drive and continue to move for a long time.
And the perpetual calendar 
Leap years up to 2/28/2100 2/29 and calendar fixes the end of any unnecessary to is a full auto calendar function.
Perfex (kt-) and "JIS class 1 antimagnetic", citizen integrating impact detection features, needle auto-correction feature three different features, which allowed more accurate time display of its own advanced technology.
Realized for the first time as a radio watches "JIS class 1 antimagnetic", the protection without compromising the functions of a radio watches magnetic big cause of malfunction of the watch, which occur such as TV and phone. Impact detection features to detect impact and control the second hand automatically. Significantly reduce the deviation of the hand due to external shocks.
If needle with needle auto-correction feature to move instantly, even if the needle position detection system detects error in IC in the time counter and hand and then the needle to the correct position.
Case diameter: 38 mm
Case thickness: mm 6.96
Belt width: 20 mm
Arm circumference: approx. 200 mm
Weight: approx. 60 g
Dial: white [some white shell characters board]
Sapphire [double-sided anti-reflective coating]
Water-resistant to 10 ATM
Radio Auto-Select feature
Forced reception function
Overcharge prevention function
Charge warning function
Perpetual calendar [no calendar changes from 2/28/2100]
Perfex [shock detector features / needle adjustment feature /J1S 1 antimagnetic features]
Time difference correction function
Private BOX: private security
2-year limited warranty