Citizen JY8120-58E - Manuals

10 11 Important Points Regarding Radio Wave Reception There are two methods to receive radio signals during normal operation, Automatic andOn Demand.The internal unidirectional antenna may be weakened by geography or buildingstructures, which may require the user to place the watch near a window.Whe...

14 15 1. Pull the crown out to position 1 and turn to align the mode hand with CHR (chronograph mode). 2. Pull out the crown to position 2. • The hands will move rapidly, stopping at the reference position recorded in the watchmemory. Correct reference positions Charge level indicator: CHNUTC hour a...

16 17 3. Set the home time. If the home time is correct, (1) Set the time manually (p. 48) (2) Set the time by receiving the radio wave (p. 20) Caution: If the home city is set to a city thatis outside the reception area, theradio wave cannot be received.Set the time manually. 4. Set digital display...

18 19 Automatic reception • It is not necessary to operate buttons during automatic reception.• The watch will automatically receive the radio wave every day at 2 a.m., 3 a.m. and 4 a.m. • The 4 a.m. reception can be changed to any time of the day. (p. 68 o o 71) • Reception can be set to OFF. (p. 6...

20 21 Recovery Automatic Reception (Automatic Reception) • If the watch stops due to insufficient charging, expose the watch to sunlight to recharge it. When the watch is recharged sufficiently, it willautomatically receive the radio wave once. * Regularly charge your radio controlled watch so it do...

22 23 W W 5. Poor Reception Areas It may not be possible to receive radio waves under environmental conditions where receptionis difficult or in areas susceptible to radio noise, such as those shown in the illustrations below.While referring to the reception level display, try to find a location wit...

24 25 <Time required for reception> Reception can take from about 2 minutes to amaximum of 15 minutes, depending on factors suchas the weather or noise. If the radio wave receptionfails, the watch may return immediately to thenormal display. [Caution] During reception, the second hand mayrotat...

26 27 Reception status Signal reception failed Radio wave reception environment was verygood Radio wave reception environment was good Radio wave reception environment was not verygood Reception level NO H M L * The time display may shift slightly depending on the reception environment and internal ...

USA EUR CHN JPN 28 29 W W 8. Reception Area Guidelines This watch can receive standard time radio waves broadcast from Japan (twotransmitters), the USA, Europe (Germany) and China.The standard time radio wave to be received can be changed by selecting the city inanother region.The maps show the appr...

35 34 [Cities and the standard time radiowave assignment] • The received standard time radio waves shown in “Table of UTC Time Differences” areassigned one of the following four radio wavetransmitters, in accordance with the home cityin digital display 2. [Standard time radio waveassignment] JPN : J...

41 40 [Checking the charge level display] Level Charge level display Remaining time (approximate) Level 0 About 3 days About 3 to 20 days About 20 to 130 days About 130 to 180 days Insufficientcharging. Rechargethe watchimmediately.The insufficientcharge warning isactivated at thislevel. The chargin...

43 42 <Mode names> * Crown in position 1 CHR Chronograph TMR Timer CAL Calendar TME Time WT-S World time set AL-1 Alarm 1 AL-2 Alarm 2 RX-S Receive set Turn thecrown tothe right Turn thecrown tothe left W W 11. Changing Mode This watch has eight modes: time (TME), calendar (CAL), timer (TMR), ...

45 44 Example: During time mode (TME) Los Angeles Switch New York [Digital display 2] Home city: LAX (Los Angeles) Home time (hand display): 10:09 a.m. [Digital display 1] World city: NYC (New York) World time (digital display): P1:09 [Digital display 2] Home city: NYC (New York) Home time (hand dis...

47 46 [What is daylight saving time?] This is a time system where the clocks are put forward an hour during the summer, when thedaylight hours are longer.Whether or not the system is used and the length of use differs between countries and regions. * Refer to the explanations for each mode for detai...

49 48 3. Pull the crown out to position 2 to enter the time correction status. • The second hand will move to the 12:00 position and stop.• The home city display of digital display 2 will go off.• The correction status for the daylight saving time setting is entered and ON or OF flashes. (There is n...

51 50 • When the time is set for one of the cities, the times for all the other citiesare also corrected automatically. • Daylight saving time can be set for each city. Position 1 Button (A)/(B) Select the city Daylight saving time setting Correct the second Correct the minute Correct the hour Switc...

53 52 4. Each time the upper right button (B) is pressed, the correction location changes. The new correction location will begin flashing.• The correction location changes in the following sequence: month c date c year. 5. Select the correction location and turn the crown to correct the time. Turn ...

55 54 • When the date is set for one of the cities, the dates for all the other cities are also corrected automatically. • The year can be set between 2000 and 2099.• When the year, month and date are set, the day is corrected automatically.• If a date that does not exist is set (for example, Februa...

61 60 • While the chronograph is being operated, the display of digital display 2 changes as follows. * If there are no button (A) or (B) operations for 10 seconds, the watch returns to the measurement status. • The measurement continues even if the watch is switched to a different mode during measu...

65 64 4. Press the upper right button (B) twice to enter the time difference setting status.• Each time you press the upper right button (B), the “Daylight saving time ON/OF”, “City displaySET/OFF” and “Time difference setting” correctionlocation changes. The new correction location willbegin flashi...

67 66 • 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.• Alarm hours/minutes: Turn the crown to the right to move the time forward and to the left to move the time back. Turn the crown...

71 70 4. Press the upper right button (B) to enter the automatic reception setting status. • The set automatic reception status flashes.• AUT, MAN and OFF flash and the watch enters the correction status. 5. Press the lower right button (A) to set the automatic reception operating condition to MAN.•...

73 72 <Resetting procedure> 1. Pull the crown out to position 1 and turn to align the mode hand with CHR (chronograph mode). 2. Pull out the crown to position 2. • The hands will rotate rapidly. 3. After the hands stop, press buttons (A) and (B) at the same time.• When you remove your finger f...

75 74 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 the watch face with the center of CHN. * Turn the crown continuously to move quickly. To stop, turn the crown to the left or right. * If no correction is req...

79 78 <Measuring the elapsed time> 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 usingthe slide rule bezel as a guideline. Elapsed time: This indicates 10 minutes have elap...

81 80 Model 2 A. Navigation Calculator 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 ). At this time, the point on the inside scale that is ...

83 82 3. Flying distance calculation Problem: What is the flying distance traveled in 40 minutes at a speed of 210 knots?Solution: Align the 21 on the outside scale with the SPEED INDEX ( Y ) of the inside scale. The 40 of the inside scale is now pointing to 14, and the answer is 140nautical miles. ...

85 84 5. Fuel consumption calculation Problem: How much fuel is consumedin 6 hours at a fuel consumption rate of 250 gallons per hour? Solution: Align the 25 of the outside scale with the inside scale’s SPEED INDEX ( Y ) of the inside scale. The 6:00 is aligned with 15, and the answer is 1500gallons...

87 86 7. Conversion Problem: How do you convert 30 miles into nautical miles and kilometers?Answer: Align the 30 on the outside scale with the STAT ( Y ) mark on the inside scale. At this time, 26 nautical miles is aligned at the NAUT ( Y ) mark on the inside scale, while the answer of 48.2 kilomete...

89 88 2. Division Problem: 250/20 Solution: Align 25 on the outside scale with 20 on the inside scale. On the outside scale read the 12.5 mark that is aligned with 10 on the inside scale. figure thenumber of decimal places, and the answer is 12.5. B. General calculation functions 1. Multiplication P...

91 90 4. Determining Square Root Problem: What is the square root of 225?Solution: Rotate the scales so that the value on the inside scale corresponding to 22.5 on the outside scale is equal to the value on the outside scale correspondingto 10 on the inside scale, and read off the answer of 15 at th...

93 92 j Wearing clothes with long sleeves makes it difficult for the watch to get thenecessary light, resulting in insufficient charging.We recommended that you charge the watch for a long time in direct sunlight once amonth. [Caution] Do not charge on surfaces that can easily become hot, such as a ...

95 94 * 1. When the watch stopped due to insufficient charging • 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” (p. 100) and sufficiently charge the watch. *...

97 96 <Canceling the power saving function> The power saving function will be automatically canceled when the watch face isexposed to light. • When power saving 1 is canceled, the digital display is restored.• After the power saving 2 has been canceled, the hands will rapidly move to the curre...

101 100 For a 1-day movement charging time ... The charging time to run the watch for one day with normal movement. Time for full charging ... The time for full charging after the watch has stopped due to an insufficient charging. [Caution] A fully charged battery will run the watch for about 6 mont...

103 102 CAUTION Charging precautions j Do not charge the watch in a high-temperature environment (about 60°C / 140°F ormore).Overheating while charging can cause the watch exterior to become discolored, thewatch to deform or the movement to be damaged. Example: • Charging close to incandescent light...

111 110 NO NO NO NO OK NO NO NO OK OK NO NO Moderate exposure to water (washing, kitchen work, swimming, etc.) Marine sports (skin diving) Scuba diving (with air tank) Examples of use For correct use within the design limits of the watch, confirm the level of water-resistance of your watch, as indic...

115 114 • Avoid using the watch in an environment where it may be exposed to chemicals or corrosive gases. If solvents, such as thinner and benzine, or substances containing such solvents come incontact with the watch, discoloration, melting, cracking, etc. may result. If the watch comesin contact w...

117 116 • Daylight saving time on/off• Calendar: Month, date, day of week (perpetual calendar until December 31, 2099) 6. Additional functions • Radio signal reception function (automatic reception, on demand reception, recovery automatic reception) • Radio wave transmitter automatic selection funct...