User manual CITIZEN WATCH C720

[. . . ] 1 M 6 9 TME CHR MODE TMR AL-2 AL-1 SET 3 7 TEMP. OFF 40 U 30 TH -10 0 10 SUN TU20 E 50 60 SAT 5 AM B 2 8 SET A 4 This watch is a combination quartz watch with a world time function, which displays the time in 30 world cities and the UTC (Coordinated Universal Time), and a thermometer function. It also includes an EL (electroluminescence) light function. English 1 CONTENTS NAMES OF PARTS . NAME OF PARTS Mode Name Press once Button A Press more than 2 seconds Press once Button B Press more than 2 seconds To calendar/ temperature display Time display Time · Calendar Calendar/temperature display City selection display EL light goes on To city selection display Displayed city changes Displayed city changes quickly To time display Zone Set Alarm 1 or Alarm 2 Switching ON/OFF EL light goes on Displayed city changes To city setting adjustment mode To <AL-1> mode SET Hour, minute, city Second Temperature (Celsius) Hour, minute, city Time difference from UTC SET or OFF Alarm monitor Displayed city changes To alarm adjustment mode To <TMR> mode AL-1 or AL-2 Alarm time, city ON or OFF To <CHR> mode TMR Measured time (hours, minutes) Temperature To <TME> mode CHR Hour, minute, second 1/1000 second To timer adjustment mode Split/Reset Timer Start/Stop Chronograph Start/Stop To time/calendar adjustment mode To <SET> mode To <SET> mode TME Hour, minute, city Second Temperature (Celsius) Month, day, city Temperature Day of week Button M Press once 1: Mode mark display 2: Digital display [1] 3: Digital display [2] 4: Graphic display Graphic display 4 5 5: Crown 6: Hour hand 7: Minute hand 8: Second hand 9: Thermosensor To set analog time Always indicates time (hours) Always indicates time (minutes) Always indicates time (seconds) Measures temperature, shown on the digital display Mode mark (blinking) Mode mark TME SET AL-1 AL-2 TMR CHR Mode (function) Time/Calendar Zone Set*1 Alarm 1 Alarm 2 Timer Chronograph M TME CHR MODE TMR AL-2 AL-1 SET 2. CHANGING MODES (FUNCTIONS) This watch has the modes (functions) listed in the next page. [. . . ] Split time measurment (1) The chronograph starts or stops each time button A is pressed. (2) Press button B during a time measurement, and the watch shows a split time for 10 seconds. Each time button B is pressed, the chronograph shows the latest split time. B Reset SET AL-1 Measured time (milliseconds) A -10 0 10 SUN TU20 E Measured time (hours, minutes, seconds) OFF Measurement A B Stop *1: Automatically returns to measurement mode after 10 seconds. B SET A B *1 Split time 22 23 <Changing the mode during time measurement in chronograph mode> Even if button M is pressed during a time measurement in chronograph mode and mode is changed, time measurement is continued internally. The measured time is shown when the mode is returned to chronograph again. However, if the time measurement is continued for more than 24 hours, the chronograph stops at the reset state. * Confirmation sound and EL light At the time of start, stop, split time check or reset operation in chronograph mode, a confirmation sound is heard. At the time of stop or a split time measurement, the EL light is turned on with the sound. Split time: Elapsed time from start point Split time Split time 9. Methods of measurement As described below, there are two methods of measuring temperature. The most recently measured temperature is displayed in the Time mode (approximate temperature is graphically displayed in both the "time display" and the "city selection display") and in the Timer mode. Also, switching between Celsius display (°C) and Fahrenheit (°F) display is possible. <Automatic temperature measurement> Temperature is automatically measured every hour on the hour, with the temperature display then being updated. However, measurement will not be carried out if the Chronograph mode or Time/Calendar mode is in the adjustment mode (blinking display) at measurement time. <Temperature measurement by button operation> If you change to the "calendar, temperature display" in the Time/Calendar mode, the temperature will be measured at 2-second intervals for 2 minutes. Start point Goal 24 25 B. Temperature measurement range and accuracy In Celsius (°C) Temperature display range Measurement unit Measurement accuracy ­9. 9°C to +59. 9°C 0. 1°C 20°C to 30°C: ±1°C ­5°C to +40°C: ±2°C In Fahrenheit (°F) 14°F to 139°F 1°F 68°F to 86°F: ±2°F 23°F to 104°F: ±4°F C. Switching between Celsius/Fahrenheit display In the Time mode's "Date, calendar display, " by pressing button M for more than 2 seconds while button A is pressed, the temperature display will switch from Celsius (°C) to Fahrenheit (°F) or vice versa. A+M C F (Notes) · If the watch is worn on the wrist durning temperature measurement, the body temperature affects measurement. For accurate temperature measurement, take the watch off and leave it in the measuring environment at least for 20 to 30 minutes. The influence of body temperature depends on environmental conditions such as difference between atmospheric temperature and body temperature before taking the watch off, etc. Extremely hot or cold temperature may cause malfunction of the watch. Celsius display Fahrenheit display <About the graphic display of approximate temperature> Approximate temperature is graphically displayed in the Time mode's "time display" and "city selection display. " The graphic display always shows Celsius temperature, even when the numerical display has been set to Fahrenheit. 26 27 10. LOW BATTERY INDICATOR When the battery gets weak, the low battery indicator function appears in the display as shown below. [. . . ] NOTE: Avoid using solvents (thinner, benzine, etc. ), as they may mar the finish. 32 33 WARNING: Handling of the battery · Keep the battery out of the reach of small children. CAUTION: Replacing the battery · For replacement of the battery, take your watch to your dealer or Citizen Service Center. · Replace the battery as soon as possible if the service life of the battery has expired. Leaving a depleted battery in the watch may result in leakage, which can damage the watch severely. [. . . ]