Seiko W851 Instructions Manual
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Seiko W851 Instructions Manual

Seiko W851 Instructions Manual

Digital quartz watch
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You are now the proud owner of a SEIKO Digital Quartz Watch Cal.
W851. For best results, please read the instructions in this booklet
carefully before using your SEIKO Digital Quartz Watch. Please keep
this manual handy for ready reference.
Enhorabuena por su adquisición de un reloj SEIKO digital de cuarzo
Cal. W851. Para óptimo resultado, lea detenidamente las instrucciones
de este folleto antes de usar el reloj. Guarde este manual para consulta
posterior.

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Summary of Contents for Seiko W851

  • Page 1 You are now the proud owner of a SEIKO Digital Quartz Watch Cal. W851. For best results, please read the instructions in this booklet carefully before using your SEIKO Digital Quartz Watch. Please keep this manual handy for ready reference.

  • Page 2: Table Of Contents

    CONTENTS Page MODE CHANGE ...................... TIME/CALENDAR MODE ..................ALARM MODE ......................STOPWATCH MODE ....................TIMER MODE ......................WORLD TIME MODE ....................ILLUMINATING LIGHT ..................... NOTES ON USING THE WATCH ................BATTERY CHANGE ....................TO PRESERVE THE QUALITY OF YOUR WATCH ........... SPECIFICATIONS .....................
  • Page 3 CAL. W851 TIME/CALENDAR WORLD TIME The time of 38 cities in different time zones ALARM throughout the world can be displayed together with their respective country The alarm can be set to ring daily at five codes for making overseas telephone calls.

  • Page 4: Mode Change

    MODE CHANGE Selection of a desired mode can be made by pressing the corresponding button in the MENU display. * When the desired mode is selected, an opening graphic display is shown before the selected mode appears. ALARM mode STOPWATCH mode TIMER mode TIME/CALENDAR WORLD TIME mode...
  • Page 5 If “CHR” is flashing in the MENU display, the measurement is in progress in the STOPWATCH mode. CHANGING BETWEEN NORMAL AND ENLARGED DISPLAYS In all modes, you can choose between the normal display that shows all the data in four rows and the enlarged display that shows the main data in three rows.

  • Page 6: Time/Calendar Mode

    TIME/CALENDAR MODE Once the time/calendar of your area is set in the TIME/CALENDAR mode, the times of the 38 cities covered in the WORLD TIME mode will be set automatically. You can choose between standard time and daylight saving time. Press in MENU display to show TIME/CALENDAR mode.

  • Page 7: Time/Calendar Setting

    TIME/CALENDAR SETTING Press and hold for 2 to 3 seconds to show TIME/CALENDAR SETTING display. Press repeatedly to select the digits (flashing) to be adjusted. City Minutes Seconds Standard time/ daylight saving time Hour 12-/24-hour Year Month Date indication Press to set the flashing digits. (Increasing order) Press to set the flashing digits.
  • Page 8 SHOWING THE SELECTED CITY Press to show the city selected for TIME/CALENDAR mode. * The name of the selected city is displayed in place of the day, scrolling from right to left, and then the day is displayed again. TURNING ON/OFF OF THE HOURLY TIME SIGNAL AND BUTTON OPERATION CONFIRMATION SOUND With each press in TIME/CALENDAR mode, the hourly time signal and button operation...
  • Page 9 * The name of the selected city appears in place of the day, and then the demonstration display will start, showing the display of each mode repeatedly. * To stop the demonstration, press any of the buttons. ADJUSTING THE CONTRAST ON THE DISPLAY The contrast on the liquid crystal display can be adjusted in 16 steps from level “0”...

  • Page 10: Alarm Mode

    ALARM MODE The alarm can be set to ring daily at five different times a day. The alarms can be engaged and disengaged independently of one another. Press in MENU display to show ALARM mode. Current time Set alarm time “ON”/“OFF”...
  • Page 11 Press and hold for 2 to 3 seconds to show ALARM SETTING display. Minutes Hour Press to select the digits (flashing) to be ad- justed. Press to set the flashing digits. (Increasing order) Press to set the flashing digits. (Decreasing order) Press to return to ALARM mode.

  • Page 12: Stopwatch Mode

    STOPWATCH MODE The stopwatch measures up to 10 hours in 1/100 second increments. Press in MENU display to show STOPWATCH mode. Current time Time measured STOPWATCH OPERATION Standard measurement START STOP RESET...
  • Page 13 Accumulated elapsed time measurement START STOP RESTART STOP RESET * Restart and stop of the stopwatch can be repeated by pressing button C. Lap time and split time measurement START LAP/SPLIT 1 LAP/SPLIT 2 STOP RESET * Measurement of lap time and split time can be repeated by pressing button E. * The lap time and split time measured remain displayed for 10 seconds together with the flashing lap number.
  • Page 14 MEMORY RECALL FUNCTION The first 199 lap and split times are automatically stored in memory. The stored data can be recalled either during or after the measurement. Recall mark Press to activate the memory recall function. With each press, the stored data are recalled from the oldest to the newest.

  • Page 15: Timer Mode

    TIMER MODE Two types of timers are available: 10-channel preset timer and adjustable timer. The adjustable timer can be set for up to 9 hours and 59 minutes in one minute increments. Press in MENU display to show TIMER mode. Current time Set time Number of times the...
  • Page 16 2 minutes 4 minutes 1 minute 3 minutes 5 minutes 10 minutes Adjustable timer 1 hour 45 minutes 30 minutes 15 minutes ADJUSTABLE TIMER SETTING Press to select the adjustable timer (See above). Press and hold for 2 to 3 seconds to show ADJUSTABLE TIMER SETTING display.
  • Page 17 Press to return to TIMER mode. TIMER OPERATION START STOP RESTART STOP RESET * Restart and stop of the timer can be repeated by pressing button C. * When the set time is up, a warning sound beeps for 5 seconds. To stop it manually, press any of the buttons.

  • Page 18: World Time Mode

    WORLD TIME MODE The time of 38 cities in different time zones throughout the world can be displayed together with their respective country codes for overseas telephone calls. Press in MENU display to show WORLD TIME mode. Country code Current time of selected city City mark Press to select the desired city.
  • Page 19 CHANGEOVER BETWEEN STANDARD TIME AND DAYLIGHT SAVING TIME If daylight saving time is in effect in the selected city, press to show it. * With each press of button B, the standard time and daylight saving time of the selected city are alternately shown.
  • Page 20 City mark City name Country name Country code (hours) K H I Karachi Pakistan D E L Delhi India + 5.5 D A C Dhaka Bangladesh R G N Yangon Myanmar + 6.5 B K K Bangkok Thailand H K G Hong Kong China B J S...

  • Page 21: Illuminating Light

    ILLUMINATING LIGHT (Electroluminescent panel) Certain materials emit light when voltage passes through them. This phenomenon, known as “electroluminescence”, is used to illuminate the display. Press in any mode. * The display is illuminated for 3 seconds. TURNING ON/OFF OF THE BUTTON OPERATION CONFIRMATION LIGHT “EL”...

  • Page 22: Notes On Using The Watch

    NOTES ON USING THE WATCH TIME/CALENDAR MODE [TIME/CALENDAR SETTING] The calendar automatically adjusts for odd and even months including February of leap years from the year 1998 up to the end of 2047. Once the year, month and date have been set, the day of the week is automatically set. The flashing digits except the seconds, the standard time/daylight saving time and the 12-/24-hour indication move quickly if button C or E is kept pressed.
  • Page 23 ALARM MODE [ALARM TIME SETTING] The flashing digits move quickly if button C or E is kept pressed. When the time function is displayed in the 24-hour indication, the alarm is also displayed in the 24-hour indication. When setting the hour digits in the 12-hour indication, check that AM/PM is properly set. If the watch is left untouched in the ALARM SETTING display with the digits flashing, it will automatically return to the ALARM mode in 2 to 3 minutes.
  • Page 24 When the illuminating light becomes dim, replace the battery with a new one. If the illuminating light remains dim after the battery is replaced, have the electroluminescent panel replaced with a new one by the retailer from whom the watch was purchased, or an AUTHORIZED SEIKO DEALER. It will be replaced at cost.

  • Page 25: Battery Change

    When all the digits start flashing, replace the battery with a new one as soon as possible. Otherwise, the watch will stop operating in 2 to 3 days. We suggest that you have the battery replaced by a SEIKO DEALER. * Even though the display is flashing, time accuracy is not affected.
  • Page 26 * The display will become blank, and the MENU display will appear when the buttons are released. Then, press button A. * The display at right will appear. * Before using the watch, set the time/calendar and then the alarm. WARNING Do not remove the battery from the watch.

  • Page 27: To Preserve The Quality Of Your Watch

    TO PRESERVE THE QUALITY OF YOUR WATCH WATER RESISTANCE Condition Scuba of use Accidental Taking a bath Swimming, and shallow contact with diving** yachting and Indication on diving water such taking a case back saturation as rain and shower Degree diving splashes of water...
  • Page 28 • Do not operate the buttons when ** We recommend that you wear a the watch is wet or in water. SEIKO Diver’s Watch for scuba If used in sea water, rinse the bar WR diving. watch in fresh water and dry it completely.
  • Page 29 2 2 - 3 to 3 years. Have your watch Years checked by an AUTHORIZED SEIKO DEALER or SERVICE CENTER to ensure that the case, buttons, gasket and CHEMICALS crystal seal remain intact. Be careful not to expose the...
  • Page 30 5 Years from close contact with objects such as TV becoming difficult to read. Please contact screens which emit strong static electricity. your AUTHORIZED SEIKO DEALER or SERVICE CENTER if you wish to have a new panel fitted (guaranteed one year).

  • Page 31: Specifications

    SPECIFICATIONS Frequency of crystal oscillator ....32,768 Hz (Hz = Hertz … Cycles per second) Loss/gain (monthly rate) ......Less than 20 seconds at normal temperature range (5 C ~ 35 C) (41 F ~ 95 F) Operational temperature range ....–10 C ~ +50 C (14 F ~ 122 F) Display system TIME/CALENDAR mode ......
  • Page 32 (Alarm mark, hourly time signal mark, “EL” mark and daylight saving time mark) Display medium ........Nematic Liquid Crystal, FEM (Field Effect Mode) Battery ............SEIKO CR2025, 1 piece Battery life indicator ........All the digits in the display start flashing when the battery life nears its end.

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