Operation Guide 3191

Reading the Display

Regular Timekeeping

The main display shows the current time, including hour, minute, second, and AM/PM indicator. It also displays the month, date, and day of the week (Sunday to Saturday). A countdown period indicator may also be present.

Key elements:

• Time: Hour, Minute, Second
• AM/PM Indicator
• Calendar: Month, Date, Day of the Week
• Countdown Period Indicator

Buttons involved in display navigation or setting are typically labeled A, B, and C.

Countdown Alarm

This section shows the countdown alarm display, indicating the set countdown period and time.

Daily Alarm Mode

Displays the alarm ON/OFF status and the time-signal ON/OFF status, indicated by specific marks.

Stopwatch Mode

Shows the stopwatch display, typically measuring in minutes, seconds, and 1/10 seconds.

Time/Calendar Setting Mode

Indicates the mode for setting the watch's time and calendar, showing hour and minute digits.

Countdown Alarm Operation

The countdown timer can be set from 1 minute to 30 minutes. To set the countdown period, press the [B] button repeatedly.

Setting Countdown Period: Each press of the [B] button cycles through available countdown periods (e.g., 1 MIN, 3 MIN, 5 MIN, 10 MIN, 15 MIN, 20 MIN, 30 MIN). A [RESET] button is also available.

Countdown begins when the [B] button is released. When the countdown reaches zero, the alarm sounds for 10 seconds. Pressing any button stops the alarm.

Setting Daily Alarm

If the daily alarm is set, a beeper sounds for 20 seconds at the preset time each day until deactivated. Pressing any button stops the beeper. If the time signal is set, the watch emits a "Be-e-ep" signal every hour on the hour.

Sound Demonstration: Press and hold the [A] button in alarm mode to sound the beeper.

Hour Setting

In daily alarm mode, press the [B] button to enter hour setting. Each press of the [A] button advances the alarm hour setting by one hour. Pressing the [A] button for more than 2 seconds causes the digit to advance quickly.

Minute Setting

Press the [B] button again to move to minute setting. Each press of the [A] button advances the alarm minute setting by one minute. Pressing the [A] button for more than 2 seconds causes the digit to advance quickly.

Pressing the [C] button exits the setting screen and returns to regular timekeeping mode.

[ON or OFF Setting of Daily Alarm and Time Signal]

The status of the daily alarm and time signal can be toggled:

• When the Alarm-ON mark and Time-signal-ON mark appear: Both daily alarm and time signal are active.
• When the Alarm-ON mark and Time-signal-ON mark disappear: Both daily alarm and time signal are inactive.
• When the Alarm-ON mark only appears: Daily alarm is active, time signal is inactive.
• When the Time-signal-ON mark only appears: Daily alarm is inactive, time signal is active.

These settings are changed by pressing the [A] button in the daily alarm mode.

Setting Time and Calendar

1. In the time setting mode, press the [A] button to correct seconds.
2. Press the [B] button to shift the flashing position. The digit(s) to be changed will flash. The sequence of settings is: SECOND, HOUR, MINUTE, DAY, DATE, MONTH.
3. Each press of the [A] button advances the selected digit by one. Holding the [A] button down allows for quick advance.
4. Press the [C] button to complete the setting and return to regular timekeeping.

Note: If no buttons are pressed for 1 to 2 minutes, the watch automatically returns to regular timekeeping (auto-retrieve function).

Stopwatch Operation

A signal confirms start/stop operation.

(a) Net Time Measurement

The stopwatch display is limited to 59 minutes 59.9 seconds. For longer durations, reset the stopwatch and start again.

• Start: Press [A].
• Stop: Press [A] again.
• Re-start: Press [A] after stopping.
• Stop: Press [A] again after re-starting.
• Reset: Press [B] to reset the stopwatch to zero.

Specifications

Accuracy at normal temperature: ± 30 seconds per month

Display Capacity:

• Regular Timekeeping Mode: Hour, minute, second, AM/PM, month, date, day (double display).
• Calendar System: Auto-calendar (correctly adjusts for February up to 28 days).
• Countdown Alarm Mode: Input range is from 1 to 30 minutes.
• Daily Alarm: Yes.
• Hourly Time Signal: Yes.
• Stopwatch Mode:
  • Measuring Capacity: 59 minutes 59.9 seconds.
  • Measuring Unit: 1/10th of a second.
  • Measuring Modes: Net time.

Battery:

• Battery Type: CR1216
• Battery Life*: Approximately 2 years

*Battery life estimate includes an average of 20 seconds of alarm use per day.