SKMEI T1618 Digital Watch Operation Instruction

A. Function Description

• 17-Digit LCD Display: Shows Hour, Minute, Second, Year (2000-2049), Day, Month, and Week.
• 5 Daily Alarms and Hourly Chime.
• Countdown Function.
• Snooze Function.
• 12/24 Hour Format with Auto Calendar.
• 1/100 Second Chronograph.
• Dual Time Function.
• EL Backlight.

B. Operational Manual

Mode Selection: From normal time mode, press the B key to cycle through other function display modes (Alarm, Chronograph, Countdown, Dual Time). Press the A key at any state to activate the EL backlight for 3 seconds.

Time Setting:

1. In normal time mode, press and hold the C key for 2 seconds to enter time setting. The 'Second' display will flash.
2. Press the A key to reset 'Second' to zero.
3. Press the B key to cycle through items to set: Minute $\longrightarrow$ Hour $\longrightarrow$ Day $\longrightarrow$ Month $\longrightarrow$ Year.
4. Press the A key to adjust the flashing item.
5. Press the C key to confirm and return to normal time mode.
6. Second Adjustment Rule: If seconds are 30-59, the minute increments by 1 when seconds reset to 00. If seconds are 00-29, the minute remains unchanged.

12/24 Hour Format Adjustment: In normal mode, press the D key to toggle between 12-hour and 24-hour formats.

3. Daily Alarm

The watch supports 5 groups of daily alarms (AL1 to AL5). The 'Hour' and 'Minute' can be adjusted. When the set time is reached, the alarm will sound for 10 seconds. The 'Hourly Chime' function, when turned on, will sound 'Di Di' every hour.

Alarm Operation:

• Each alarm group (AL1-AL5) can be individually turned on or off by pressing the D key. The alarm symbol will appear or disappear accordingly.
• Snooze Function: Only AL1 has the snooze function. When AL1 alarm sounds, press the D key to enable/disable the snooze function (indicated by the AL1 alarm symbol). If enabled, the alarm will sound again every 5 minutes for 10 seconds. Press the C key to stop the snooze function.
• Alarm Time Setting:
  1. In Alarm mode, press the A key to select AL1 through AL5.
  2. Choose the desired alarm, then press and hold the C key for 2 seconds. The 'Hour' will flash.
  3. Press the B key to select 'Hour' or 'Minute'.
  4. Press the A key to adjust the value. Holding the A key increases the value rapidly.
  5. Press the C key to exit setting mode and return to the alarm display.
• The setting procedure is the same for all five alarm groups.
• Stopping the Alarm: When the alarm sounds, press any key to stop it.
• Snooze and Hourly Chime Switch:
  • In Alarm mode 1, press the D key to toggle the snooze function on/off.
  • On the "AL: 00" screen, press the D key to toggle the hourly chime function on/off.
  • Indicators: A specific symbol indicates the snooze function is ON. Another symbol indicates the hourly chime function is ON.
  • If an alarm function is active, its corresponding symbol will remain visible in other display modes.

4. Chronograph Function

The chronograph measures time from 0 to 23 hours, 59 minutes, 59.99 seconds.

• If the chronograph is not stopped, it measures continuously. Upon reaching the maximum value, it resets to 0 and continues measuring.
• Exiting chronograph mode during measurement will reset the timer to the elapsed time.

Using Chronograph Measurement:

• Passing Time: Press D key to start, press D key to stop, press D key to start again, press D key to stop, press C key to delete.
• Intermediate Time (Split Time): Press D key to start, press C key for intermediate measurement (SPL display), press C key to delete midway measurement, press D key to stop, press C key to delete.
• Two-Player Time Measurement: Press D key to start. Press C key for intermediate measurement, showing the time of the first player. Press D key to stop (when the second player finishes). Press C key to show the time of the second player. Press C key to delete.

Pressing the C key will display all recorded chronograph times. Pressing C key again resets the chronograph to zero.

5. Countdown Function

The countdown timer can be set from 1 minute up to 24 hours. When the countdown reaches zero, the alarm sounds for 10 seconds. Press any key to stop the alarm.

Countdown Setting:

1. In countdown mode, press and hold the C key for 2 seconds to enter setting mode. The hours will flash.
2. Press the B key to select the item to set: Hour $\longrightarrow$ Minute.
3. Press the A key to increase the value. Holding the A key increases the value rapidly.
4. Press the C key to exit setting mode and return to the countdown display.
5. To set a 24-hour countdown, set the value to 0:00.

Countdown Operation:

• Press the D key to start or pause the countdown.
• When paused, press the C key to reset the countdown to its set starting time.

6. Dual Time

In dual time mode, press and hold the C key for 2 seconds. The 'Hour' will flash.

• Press the B key to select 'Hour' or 'Minute' for setting.
• Press the A key to adjust the flashing item. Holding the A key increases the value rapidly.
• Press the C key to return to the dual time mode.