SKMEI 1583 Operation Manual

Features

• Digits LCD Display: Displays Hour, Minute, Second, Month, Day, Year, and Week.
• Dual Time Display: Shows both local and second time.
• 12/24 Hour Display: Toggle between 12-hour and 24-hour formats.
• Daily Alarm and Hourly Chime: Set daily alarms and hourly chimes.
• 1/100 Second Chronograph: Features split functions for timing.
• Countdown Function: Counts down from 23:59:59.
• 3 Second EL Backlight: Provides illumination for 3 seconds.
• Year Setting: Supports year range from 2000 to 2049.

Function - Operation Manual

Backlight: At any state, press the A key for 3 seconds to activate the EL backlight.

Mode Switching: Press the B key successively to cycle through modes: Time Mode → Daily Alarm → Dual Time → Timer → Chronograph.

Visual Flow of Modes:

• Time Mode (Display: 05 7:30)
• Daily Alarm (Display: 05 2:05 ALM)
• Dual Time (Display: 00 12:05)
• Timer (Display: 0:00:00)
• Chronograph (Display: 00:00:00)

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 the setting item to adjust: Second → Time → Minute → Year → Month → Day. (Note: In any interface of this setting, pressing the A key converts between 12/24 hour formats).
3. Press the D key to adjust the selected setting item. Press and hold the D key for rapid adjustment.
4. After completing the settings, press the C key to exit the setting mode.

Visual Flow of Time/Date Setting:

• Time Mode (Display: 05 7:30)
• 'Second' Setting (Display: 05 7:30, Seconds flashing)
• 'Time' Setting (Display: 05 7:30, Hour flashing)
• 'Minutes' Setting (Display: 05 7:30, Minute flashing)
• 'Month' Setting (Display: 05 7:30, Month flashing)
• 'Day' Setting (Display: 05 7:30, Day flashing)
• 'Year' Setting (Display: 05 7:30, Year flashing)

Daily Alarm Mode

1. Press the A key to cycle through alarm states: Alarm Mode → Hourly Chime → Daily Alarm → Daily Alarm and Hourly Chime.
2. Press the C key to enter the alarm setting mode. The 'Hour' display will flash.
3. Press the B key to select the setting item: Hour → Minute → Month → Day.
4. Press the D key to adjust the selected setting item. Press and hold the D key for rapid adjustment.
5. After setting, press the C key to exit setting mode.

Note: The default setting is Daily Alarm. Setting the Month and Day together designates a specific date for the alarm.

Alarm Ring: When the alarm is ON, it will sound 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' display will flash.
2. Press the B key to select the setting item: Hour → Minute.
3. Press the D key to adjust the selected setting item. Press and hold the D key for rapid adjustment.
4. After setting, press the C key to exit setting mode.

Visual Flow of Dual Time Setting:

• Dual Time (Display: 05 12:05)
• Hour Setting (Display: 05 12:05, Hour flashing)
• Minute Setting (Display: 05 12:05, Minute flashing)

Timer Mode

The measurement range of the timer is 23 hours, 59 minutes, and 59 seconds.

1. Press the C key to enter the setting mode. The 'Hour' display will flash.
2. Press the B key to select the setting item: Hour → Minute → Second. (In the setting interface, press the A key to turn the AUTO loop ON or OFF).
3. When the AUTO cycle function is turned ON, the timer will automatically cycle after completion. Enter the timer setting item and press A to close AUTO. (Press D in timer mode to pause the timer, then press C to enter the setting item).
4. Press the D key to adjust the setting items. Press and hold the D key for rapid adjustment.
5. After setting, press the C key to exit setting mode.
6. The timer alarm sounds for about 10 seconds. Press any key to stop the alarm.
7. When the alarm is stopped, the timer setting is displayed.
8. When the timer is stopped midway, press the A key to return to the setting.

Visual Flow of Timer Setting:

• Timer Mode (Display: 0:00:00)
• 'Time' Setting (Display: 0:00:00, Hour flashing)
• 'Minutes' Setting (Display: 0:00:00, Minute flashing)
• 'Second' Setting (Display: 0:00:00, Second flashing)
• AUTO automatic cycle open (Display: 0:00:00 with AUTO indicator)

Chronograph

Starting and Stopping:

• Press the D key to start counting.
• Press the A key to split time.
• Press the A key again to stop split time.
• Press the D key to stop timing.
• Press the A key to return to zero.
• Press the A key again to display total time.

Dual Timer Function:

• Press the D key to start the dual time mode. When stopped, press the C key to reset to zero.
• During dual timer operation, press the A key to activate the SPL (split) function, displaying "SPL" on the screen. Press A key again to return to the dual timer.
• When the maximum time (23 hours, 59 minutes, 59.99 seconds) is reached, the stopwatch will restart timing from 0.

Factory Reset: Press and hold all four keys (A, B, C, D) simultaneously to restore factory settings.

Visual Flow of Chronograph:

• Chronograph (Display: 00:00:00)
• Start Counting (Display: 00:00:01)
• Split Time (Display: 00:00:05 SPL)
• Split Time Stop (Display: 00:00:05)
• Stop Timing (Display: 00:00:26)
• Return Zero (Display: 00:00:00)
• Total Time (Display: 00:00:10)

Visual Flow of Factory Reset:

• Time Mode (Display: 05 7:30)
• All Show Mode (Display: 88:88:88)
• Resume Factory Mode (Display: 12:00)