Table of Contents 1. Your Watch ....................9 2. Before Use ....................12 • Checking the Reference Position ............14 3. Basic Watch Operations ................16 Radio Signal Reception 4. Radio Signal Reception ................18 5. Poor Reception Areas ................23 6.
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Operations in Each Mode Solar Power 11. Changing Mode ..................42 24. Solar Power Function ................92 12. Using Home Time and World Time ............44 25. Characteristics of the Solar Powered Watch......... 94 13. Using Daylight Saving Time ..............46 A.
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Charge your watch as indicated in “Guide to Charging Time” (p. 100). Notice All repairs performed on this watch are to be performed at the CITIZEN. When desiring to have your watch repaired or inspected, please contact the Citizen Service Center either directly or through the store where you purchased your watch.
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Part Names (1) Part Names (2): Digital Displays UTC hour hand [Digital display 2] [Digital display 1] UTC minute hand Home city name World city name Charge level indicator/ Home time minute hand radio wave reception indicator Button (B) 24-hour hand Home time hour hand Chronograph measurement mark...
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Part Names (3): Radio Wave Reception Display W W 1. Your Watch World Time Eco-Drive Radio Controlled Watch NO: Signal reception failed RX: Reception standby H, M, L: Reception level/ reception status <Radio Signal Reception Function> This watch is a radio controlled watch, which receives the standard time radio waves that are broadcast from radio wave transmitters in four regions, Japan, the USA, Europe (Germany) and China, and uses these waves to automatically correct the time and date.
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<World Time Function> Important Points Regarding Radio Wave Reception i UTC (Coordinated Universal Time), the time and date of 43 cities (or regions) from around There are two methods to receive radio signals during normal operation, Automatic and the world and one city (any can be set) can be displayed and easily called up. It is On Demand.
[Insufficient charging] [Fully charged] Charge the watch If you are unable to Charge level sufficiently by placing it in direct sunlight as indicated receive radio waves, indicator please inquire to the in “Guide to Charging Citizen Service Center. Time” (p. 100).
[Checking the Reference Position] 1. Pull the crown out to position 1 and turn to align UTC hour and minute hands the mode hand with CHR (chronograph mode). 2. Pull out the crown to position 2. Before using the watch, confirm that the hands are aligned with •...
W W 3. Basic Watch Operations * The watch receives the radio wave from the radio wave transmitter located in the home city’s region. Home time Home time Check the Set the home city. Set the home time. Set digital display 1. hour hand minute hand charge level.
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W W 4. Radio Signal Reception Automatic reception • It is not necessary to operate buttons during automatic reception. Three types of radio signal reception are possible: automatic reception, on demand • The watch will automatically receive the radio wave every day at 2 reception and recovery automatic reception.
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On Demand Reception Recovery Automatic Reception (Manual Reception) (Automatic Reception) • Signals can be received at any time. • If the watch stops due to insufficient charging, expose the watch to sunlight to recharge it. When the watch is recharged sufficiently, it will [Mode hand position <Receiving the radio signals>...
<Storing Your Radio Controlled Watch> W W 5. Poor Reception Areas If the watch has received insufficient light for charging or has been kept in a dark It may not be possible to receive radio waves under environmental conditions where reception location for an extended period of time (one week or more), the Power Save Feature of is difficult or in areas susceptible to radio noise, such as those shown in the illustrations below.
<Time required for reception> W W 6. Display during Reception Reception can take from about 2 minutes to a [During reception standby] [Receiving signal] [Reception completed] maximum of 15 minutes, depending on factors such as the weather or noise. If the radio wave reception [Second hand display] fails, the watch may return immediately to the normal display.
W W 7. Confirming Reception Status Reception Reception status level Radio wave reception environment was very • The result of the radio wave reception can be confirmed. good • The daylight saving time setting status of the home city can be confirmed. Radio wave reception environment was good Radio wave reception environment was not very 1.
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W W 8. Reception Area Guidelines Standard time Transmitter Frequency radio signal Ohtakadoya-yama Standard Time Transmitter This watch can receive standard time radio waves broadcast from Japan (two 40 kHz (Fukushima Transmitter) transmitters), the USA, Europe (Germany) and China. Japan The standard time radio wave to be received can be changed by selecting the city in Hagane-yama Standard Time Transmitter 60 kHz...
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JPN: JJY (Japan) Automatically selects one of the two transmitters CHN: BPC (China) Shangqiu, Henan: Radius of approximately 1,500 km from Fukushima Transmitter: Radius of approximately 1,500 km from the transmitter the transmitter Kyushu Transmitter: Radius of approximately 2,000 km from the transmitter...
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USA: WWVB (USA) Fort Collins: Radius of approximately 3,000 km from the EUR: DCF77 (Germany) Mainflingen: Radius of approximately 1,500 km from transmitter the transmitter...
[Cities and the standard time radio W W 9. World City Display wave assignment] • The received standard time radio waves shown UTC (Coordinated Universal Time) and 43 cities (or regions) are registered in this watch in “Table of UTC Time Differences” are in advance, and it is also possible to register one additional city.
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[Table of UTC Time Differences] Received Received Time Time Set to TME mode and press the upper right button (B) repeatedly while the crown is in Display City name radio wave Display City name radio wave difference difference transmitter transmitter position 1 to display in sequence in digital display 1 the table’s city names from top to bottom, and press the lower right button (A) to display in sequence the city names from Cairo...
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Received Received Received Received Time Time Time Time Display City name radio wave Display City name radio wave Display City name radio wave Display City name radio wave difference difference difference difference transmitter transmitter transmitter transmitter Kabul + 4.5 Tokyo Denver Fernando de Noronha...
[Checking the charge level display] W W 10. Charge Level Display Level Level 0 Level 1 Level 2 Level 3 • The charge level (approximate) is displayed in four grades to show how much the secondary battery is charged. Charge level •...
<Mode names> WT-S W W 11. Changing Mode World time set * Crown in position 1 This watch has eight modes: time (TME), calendar (CAL), timer (TMR), chronograph (CHR), world time set (WT-S), alarm 1 (AL-1), alarm 2 (AL-2) and receive set (RX-S). AL-1 1.
Example: During time mode (TME) W W 12. Using Home Time and World Time Los Angeles New York Switch • When going to a country or region in a different time zone when on business or vacation, the destination home time can be easily displayed by switching the home time and world time. * Switching can only be performed during the time mode (TME) or calendar mode (CAL).
[Setting the daylight saving time] W W 13. Using Daylight Saving Time Manually set the daylight Change automatically with saving time radio wave reception [What is daylight saving time?] This is a time system where the clocks are put forward an hour during the summer, when the TME/WT-S RX-S TME/WT-S...
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3. Pull the crown out to position 2 to enter the time correction status. W W 14. Setting the Time (TME) • The second hand will move to the 12:00 position and stop. (The time is corrected using the digital display) •...
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6. Press the upper right button (B) to enter the hour correction status. • When the time is set for one of the Position 1 • Turn the crown to correct the time. Turn to the right to move forward and to the left cities, the times for all the other cities to move back.
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4. Each time the upper right button (B) is pressed, the correction location changes. The W W 15. Setting the Calendar (CAL) new correction location will begin flashing. (The date is corrected using the digital display) • The correction location changes in the following sequence: month c date c year. •...
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• When the date is set for one of the cities, the dates for all the other cities are also <Date correction status> corrected automatically. Button (B) • The year can be set between 2000 and 2099. Button (A)/(B) • When the year, month and date are set, the day is corrected automatically. Position 1 Select the city •...
3. Turn the crown to set the time. W W 16. Using the Timer (TMR) • Turn to the right to increase the time and turn to the left decrease the time. • Turn the crown continuously to move quickly. •...
<Using the timer> 4. When the time is up, END is displayed in digital display 2 and the time-up tone sounds for 5 seconds. 1. A confirmation tone will sound each time you press the upper right button (B) to start and •...
• While the chronograph is being operated, the display of digital display 2 changes as W W 17. Using the Chronograph (CHR) follows. • The chronograph can display times up to 23 hours 59 minutes and 59.99 seconds. (Reset) (During measurement) •...
3. Press the lower right button (A) to switch between daylight saving time ON (set) and OF (canceled). W W 18. Using the World Time Setting (WT-S) • When daylight saving time is set, the time will move forward by one hour. •...
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<Setting the desired time difference> 4. Press the upper right button (B) twice to enter the [Time difference setting status] time difference setting status. • Any time difference can be set for HOM (user setting city), in intervals of 15 minutes from •...
W W 19. Using the World Time Alarm (AL-1 and 2) • The correction location changes in the following sequence: Alarm ON/OF c City name c Alarm: Hours c Alarm: Minutes. • City name: Turn the crown to select the city. •...
mA (Manual): The time is not updated with the daylight saving time from the received radio W W 20. Using the Receive Setting (RX-S) wave. [Daylight saving time reception setting] [Automatic reception setting] • Select whether to update the time with the daylight saving time from the received radio wave. •...
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<Setting procedure> 4. Press the upper right button (B) to enter the automatic reception setting status. • The set automatic reception status flashes. 1. Pull the crown out to position 1 and turn to align the mode hand with RX-S (receive •...
<Resetting procedure> W W 21. LED Lights All parts displayed 1. Pull the crown out to position 1 and turn to align • Press the upper right button (B) while the crown is in the normal position to turn on the LED lights of the mode hand with CHR (chronograph mode).
W W 23. Adjusting the Reference Position 4. A Adjusting the charge level indicator (1) Display CHA in digital display 2. (2) Turn the crown to align the charge level indicator of UTC hour the watch face with the center of CHN. 1.
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6. B Adjusting the UTC hands (hour hand and minute hand) 8. D Adjusting the minute hand (1) Press the upper right button (B) to display UTC in the digital display. (1) Press the upper right button (B) to display MIN in digital display 2. (2) Turn the crown to align the UTC hour hand and minute hand with (2) Turn the crown to align the minute hand with 12:00.
<Measuring the elapsed time> Using the Slide Rule Bezel Align the q mark (K mark for this model) on the slide rule bezel with the minute hand. After a certain time has elapsed, you can estimate how much time has elapsed by using the slide rule bezel as a guideline.
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<Measuring remaining time> Model 2 You can tell how much time remains by aligning the q mark (or K mark) on the slide A. Navigation Calculator rule bezel with the target time. 1. Calculation of time required Problem: How long does it take an airplane flying at 180 knots to fly a distance of 450 nautical miles? Solution: Set the 18 mark on the outside scale to the SPEED INDEX (Y).
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2. Speed (Ground Speed) Calculation 3. Flying distance calculation Problem: What is the speed (ground speed) of an airplane when it takes 1 hour and 20 Problem: What is the flying distance traveled in 40 minutes at a speed of 210 knots? minutes to fly a distance of 240 nautical miles? Solution: Align the 21 on the outside scale with the SPEED INDEX (Y) of the inside Solution: Align the 24 on the outside scale with 1:20 (80) on the inside scale.
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4. Fuel consumption rate calculation 5. Fuel consumption calculation Problem: If 120 gallons of fuel are consumed in 30 minutes’ flying time, what is the Problem: How much fuel is consumedin 6 hours at a fuel consumption rate of 250 fuel consumption rate? gallons per hour? Solution: Align the 12 of the outside scale with 30 of the inside scale.
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6. Maximum flying hours 7. Conversion Problem: With a fuel consumption rate of 220 gallons per hour and a fuel supply of Problem: How do you convert 30 miles into nautical miles and kilometers? 550 gallons, what is the maximum number of flying hours? Answer: Align the 30 on the outside scale with the STAT (Y) mark on the inside Solution: Align the 22 of the outside scale with the inside scale’s SPEED INDEX (Y) scale.
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2. Division B. General calculation functions Problem: 250/20 1. Multiplication Solution: Align 25 on the outside scale with 20 on the inside scale. On the outside Problem: 20 scale read the 12.5 mark that is aligned with 10 on the inside scale. figure the Solution: Align 20 on the outside scale with 10 on the inside scale, and read the number of decimal places, and the answer is 12.5.
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3. Reading Ratios 4. Determining Square Root Problem: 30/20 = 60/x Problem: What is the square root of 225? Solution: Align 30 on the outside scale with 20 on the inside scale. At this time, the Solution: Rotate the scales so that the value on the inside scale corresponding to 22.5 answer of 40 can be read from the inside scale corresponding to 60 on the on the outside scale is equal to the value on the outside scale corresponding outside scale.
W W 24. Solar Power Function j Wearing clothes with long sleeves makes it difficult for the watch to get the necessary light, resulting in insufficient charging. We recommended that you charge the watch for a long time in direct sunlight once a This watch uses a secondary battery to store electrical energy.
* 1. When the watch stopped due to insufficient charging W W 25. Characteristics of the Solar Powered Watch • It takes at least 30 minutes to recharge sufficiently to perform recovery automatic reception, even if the watch is being exposed to light. After recovery, refer to “Guide to Charging Time”...
<Canceling the power saving function> A. Power Saving Function The power saving function will be automatically canceled when the watch face is If the watch face is not exposed to light for a long time, the power saving function is activated to minimize the battery consumption.
B. Insufficient Charge Warning j If the charging insufficiency occurs during radio signal reception, the operation will Function stop automatically, the watch will return to the time before the operation, and 2- second interval movement will begin. When the charge level indicator reaches level 0, the Regularly charge your radio controlled watch so it does not become insufficiently second hand’s movement changes from 1-second intervals to 2-second intervals and the...
For a 1-day movement charging time ... The charging time to run the watch for one day D. Guide to Charging Time with normal movement. The charging time varies according to the model (including the color of the watch face). Time for full charging ...
E. Handling Your Solar Powered Watch CAUTION Charging precautions j Do not charge the watch in a high-temperature environment (about 60°C / 140°F or WARNING Handling the secondary battery more). Overheating while charging can cause the watch exterior to become discolored, the j Do not remove the secondary battery from the watch yourself, unless unavoidable.
Troubleshooting <Radio Signal Reception Function> Problem Check Remedy Problem Check Remedy • Is the home city (digital • Check the map and change the setting. • Are there objects nearby that • Avoid objects that block radio signals (p. 28o o 33) display 2) set to the same •...
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Problem Check Remedy Problem Check Remedy Radio signals The time is not • Is the mode hand pointing to • Pull the crown out to position 1 and • Check the reception status. • If the reception status is NO, cannot be a mode other than TME, set the mode to TME, CAL or RX-S.
For correct use within the design limits of the watch, confirm the level of water- Precautions resistance of your watch, as indicated on the dial and case, and consult the table. WARNING: Water-resistance performance There are several types of water-resistant watches, as shown Examples of use in the following table.
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NOTE: Avoid using solvents (thinner, benzine, etc.), as they may damage the finish. become clear within a day, immediately take the watch to your dealer or Citizen Service Center for repair. Leaving the watch in such a state will allow corrosion to form inside.
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Other parts need to be inspected and replaced if necessary. Timekeeping will become inaccurate if you place the watch close to magnetic health Ask for Citizen geuine parts upon replacement. equipment such as a magnetic necklace or a magnetic latch of a refrigerator door or handbag clasp or the earphone of a mobile phone.
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• Daylight saving time on/off W W 26. Specifications • Calendar: Month, date, day of week (perpetual calendar until December 31, 2099) 6. Additional functions 1. Cal. No.: U68* • Radio signal reception function (automatic reception, on demand reception, recovery 2.
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• Time difference set by user 7. Operation time: • Zone set function (city name display SET/OFF) • Time from a full charge until the watch stops without charging • Home time (analog) and world time (digital) switching function : About 3.5 years (when in the power saving mode) •...
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