SKMEI 1583 Operation Manual

Features

• Digits LCD Display: Shows Hour, Minute, Second, Month, Day, Year, and Week.
• Dual time display: Shows both local and second time.
• 12/24-hour display format.
• Daily Alarm and Hourly Chime.
• 1/100 second Chronograph with split functions.
• Countdown function (up to 23:59:59).
• Dual time mode.
• 3-second EL backlight.
• Year setting range: 2000-2049.

Function - Operation Manual

Press the A key for a 3-second EL backlight.

Press the B key successively to cycle through modes:

• Time Mode
• Daily Alarm
• Dual Time
• Timer
• Chronograph

Time/Date Setting

1. In Time Mode, press and hold the C key to enter the time setting state. The "Second" display will flash.
2. Press the B key to select settings: Second → Time → Minutes → Year → Month → Day.
3. Press the A key to toggle between 12-hour and 24-hour formats at any point during setting.
4. Press the D key to adjust the selected setting item. Press and hold the D key for rapid adjustment.
5. After completing settings, press the C key to exit setting mode.

Daily Alarm Mode

Press the A key to cycle through alarm functions:

• Daily Alarm
• Hourly Chime
• Daily Alarm and Hourly Chime

To set the alarm:

1. Press the C key to enter alarm setting mode. The "Hour" will flash.
2. Press the B key to select setting items: Hour → Minute → Month → Day.
3. Press the D key to adjust the selected item. Press and hold D for rapid adjustment.
4. After setting, press the C key to exit setting mode.

Note: By default, it is set to Daily Alarm. Setting Month-Day enables a specific date alarm.

Alarm Ring: When the alarm is ON, it sounds for 10 seconds. Press any key to stop the alarm prompt.

Dual Time Function and Setting

1. Press the C key to enter the second time setting mode. The "Hour" will flash.
2. Press the B key to select setting items: Hour → Minute.
3. Press the D key to adjust the selected item. Press and hold D for rapid adjustment.
4. After setting, press the C key to exit setting mode.

Timer Mode

Measurement range: 23 hours, 59 minutes, and 59 seconds.

1. Press the C key to enter setting mode. The "Hour" will flash.
2. Press the B key to select settings: Hour → Minute → Second.
3. During setting, press the A key to turn the AUTO loop function ON or OFF.
4. When AUTO cycle is ON, the timer will automatically restart after completion.
5. To set the timer and close AUTO: Enter timer setting, press A to close AUTO. Press D in timer mode to pause, then press C to enter the setting item.
6. Press the D key to adjust the selected item. Press and hold D for rapid adjustment.
7. After setting, press the C key to exit setting mode.
8. The timer alarm sounds for about 10 seconds. Press any key to stop the alarm.
9. When the alarm stops, the timer setting is displayed.
10. If the timer is stopped midway, press the A key to return to the setting.

Chronograph

1. Press the D key to start the chronograph.
2. When stopped, press the C key to reset to zero.
3. During chronograph operation, press the A key to activate the SPL (Split time) function. "SPL" will be displayed. Press A again to return to the normal display.
4. When the maximum time (23 hours, 59 minutes, 59.99 seconds) is reached, the stopwatch will automatically restart from 0.

Note: Holding down all four keys (A, B, C, D) simultaneously will restore factory settings.