This is the SKMEI 1875 operation instruction, set out in the order you actually use it. Every step follows the leaflet supplied in the box, and the pictures are the leaflet's own. The short notes underneath only explain what it assumes you already know.
The SKMEI 1875 is a four-key digital sports watch with a 13-digit display, a 12-group lap stopwatch, a countdown timer, a second time zone and an EL backlight.
- 13 digits: hour, minute, seconds, month, day and week
- Calendar from 2000 to 2099
- Second time (DT) function
- 12/24-hour format
- Daily alarm and hourly chime, with snooze
- Stopwatch: 1/100 second to 23 h 59 min 59.99 s, with 12-group LAP split timers
- Countdown function
- EL backlight
Jump to: Keys · Modes · Time and date · Alarm and chime · Stopwatch · Dual time · Countdown · If something looks wrong
The four keys
Everything on this watch runs through four keys, and three of them change job depending on which mode you are in. The leaflet labels each key twice: once by name and once by what it does in that mode.
| Key | Leaflet label | What it does |
|---|---|---|
| A | LIGHT | Lights the EL backlight for 3 seconds, in any mode |
| B | MODE | Moves to the next mode; inside a setting, selects the next flashing item |
| C | RESET | Hold to open a setting, press to leave it; in alarm mode it switches the alarm, chime and snooze on and off; in stopwatch and countdown it resets the reading |
| D | START | Changes a flashing value; starts and stops the stopwatch and countdown; in normal time mode it switches 12/24-hour display |
The five modes
One press of B steps forward through the five modes, and the leaflet draws them as a single chain. Keep pressing to come round to normal time again.
Setting the time and date
- In normal time mode, press and hold C for 2 seconds. The seconds start flashing.
- Press B to move through the items. The leaflet draws the sequence as Second, Hour, Minute, Year, Month, Day.
- Press D to change the flashing item; press and hold D to run it quickly.
- While the seconds are flashing, pressing D returns them to 00. If the seconds are between 30 and 59, the minutes go up by one.
- Press C to exit the setting. If you do nothing for 60 seconds, it exits on its own and returns to normal time mode.
Separately, D in normal time mode switches the display between 12-hour and 24-hour.
Alarm, hourly chime and snooze
In alarm mode, press D to go to the hourly chime screen, press C to switch the hourly chime on or off, and press D again to come back to the alarm screen.
In alarm mode, press C to switch the alarm on or off, marked AL on the display, and to switch the snooze on or off, marked SNZ.
- In alarm mode, press and hold C for 2 seconds. The hour starts flashing.
- Press B to move through the items: Hour, Minute, Month, Day.
- Press D to change the flashing item; press and hold D to run it quickly.
- Press C to exit the setting. If you do nothing for 60 seconds, it exits on its own and returns to alarm mode.
The month and day items are what decide which day the alarm fires, and the leaflet sets out four cases:
| You want | Month / Day setting |
|---|---|
| A daily alarm | Leave both at ------ |
| An alarm in one month only | Set the month to 12.--- |
| An alarm on one day of the month only | Set the day to ---.30 |
| An alarm on one date | Set both, for example 12.30 |
When the set time is reached, the alarm rings for 10 seconds and the AL or SNZ symbol flashes. Any key stops the ringing.
Snooze. With snooze switched on, SNZ keeps flashing after the alarm stops ringing, and the watch rings again every 5 minutes, six times in all. Any key stops it.
Stopwatch and the 12 lap timers
The stopwatch measures 1/100 second up to 23 hours 59 minutes 59.99 seconds. At that maximum it restarts from 00:00. It also stores 12-group LAP split times.
- In stopwatch mode, press D to start timing and D again to stop.
- With the timing stopped, press C to return the display to 0:00:00.
- For laps, press D to start timing, then press C to take the first LAP split. Press C again for each following lap.
- Press D to stop the lap timing, then press C to look through the stored LAP records.
- To wipe the records, press and hold C for 4 seconds.
Dual time
- In dual time mode, press and hold C. The hour starts flashing.
- Press B and the minute starts flashing.
- Press D to change the flashing item; press and hold D to run it quickly.
- Press C to exit. If you do nothing for 60 seconds, it exits on its own and returns to dual time mode.
The seconds of dual time and normal time are synchronised, so there is nothing to set there.
Countdown
- In countdown mode, press and hold C for 2 seconds. The seconds start flashing.
- Press B to move through the items: Second, Hour, Minute.
- Press D to change the flashing item; press and hold D to run it quickly.
- Press C to exit. If you do nothing for 60 seconds, it exits on its own and returns to countdown mode.
The countdown runs to a maximum of 23 hours 59 minutes 59 seconds. Press D to start it and D again to stop it. When it is stopped, C returns the display to the value you set. To abandon a countdown that is already running, press C to stop the function and go back to your set time.
At 0:00:00 the watch chimes for 15 seconds. Any key stops the chime and returns the display to the time you set.
If something looks wrong
None of the following is a fault, and the leaflet does not cover any of it. Each row is a state the watch is designed to sit in.
| What you see | What is happening | What to do |
|---|---|---|
| The display will not leave a mode you did not pick | B cycles forward only | Keep pressing B until normal time comes round again |
| Digits are flashing and most keys do nothing | You are inside a setting, where B selects and D adjusts | Press C to leave, or leave it alone for 60 seconds |
| The alarm never fires on the day you want | The month and day items are still set from a previous date alarm | Set them to ------ for a daily alarm, or to the date you want |
| The countdown shows your set time instead of counting | It is stopped rather than running | Press D to start it |
| The lap records will not clear | Clearing needs a 4-second hold, longer than the usual 2 | Hold C for 4 seconds in stopwatch mode |
| The watch still shows the wrong hour after setting | The 12/24-hour format is a separate switch | Press D in normal time mode to change it |
Source: the printed SKMEI 1875 operation instruction supplied with the watch. Steps, key names and field orders are reproduced as written in that leaflet; the explanation of the settings and the troubleshooting table are our own.