The SKMEI 2045 is a three-key digital watch with five modes — normal time, alarm, stopwatch, dual time and countdown — and a stopwatch that stores 60 split times at 1/100 second. Everything here about how the watch works comes from the operation leaflet packed with it, in the leaflet's own order: the keys, the mode row, then each mode's settings.
- 13-digit LCD showing hour, minute, second, year (2000–2099), month, day and weekday
- Daily alarm with snooze, and an hourly chime
- 1/100-second stopwatch with 60 segmented records, up to 23 hours 59 minutes 59.99 seconds
- Countdown up to 24 hours
- 12- or 24-hour display
- EL backlight
Jump to: The three keys · The five modes · 12 or 24 hour · Setting the time · The alarm · Switching alarm and chime · Stopwatch · Dual time · Countdown · If something looks wrong
The three keys
The leaflet draws one line from the right-hand edge of the case to each of the three keys, and labels them by the job each one does: A is ADJ/ST/STP/LIGHT, B is MODE, C is SET.
| Key | Leaflet label | What it does |
|---|---|---|
| A | ADJ / ST / STP / LIGHT | Changes the flashing value in a setting screen, starts and stops the stopwatch, lights the display |
| B | MODE | Moves to the next mode, and to the next item inside a setting screen |
| C | SET | Held for 3 seconds, opens a setting screen; a short press closes it, and in alarm mode also switches the alarm and snooze |
In any mode, press A and the EL backlight lights for 3 seconds. That single sentence is all the leaflet gives for the light — there is no second instruction for switching it on.
The five modes
B moves the watch from one mode to the next, in this order: Normal Time, Alarm, Stopwatch, Dual Time, Countdown. The leaflet prints the five as a row with B key written on every arrow between them.
Leaving a screen does not interrupt what is running. The leaflet says so about the stopwatch in particular: press B while the watch is timing and you move to another mode with the count still going.
12-hour or 24-hour display
In normal time mode, press B to convert between 12H and 24H. That is the whole instruction — no menu, no confirmation screen, and no second step.
A conflict in the leaflet. The same leaflet puts B key on every arrow of its mode row, where B moves you to the next mode; and its Chinese edition names A, not B, for this switch. If pressing B takes you to the alarm screen instead of changing the clock, A is the key the other edition points at.
How to set the time
Hold C for 3 seconds in normal time mode. The seconds start flashing, and that flashing field is the open setting screen.
B moves to the next item. The six items run in this order: second, hour, minute, year, month, day. The weekday is not one of them, and the year runs from 2000 to 2099.
A changes the flashing value; hold A and it runs quickly. C closes the screen and returns the watch to normal time.
How to set the alarm
Press B until the alarm screen appears — the display reads AL — then hold C for 3 seconds. The hour flashes.
B moves through four items: hour, minute, month, day. A changes the flashing value, with a hold to run it faster, and C closes the screen.
The alarm rings for 10 seconds. The leaflet's note lists a daily alarm and a monthly alarm, and the last two items in this setting are month and day.
Turning the alarm, snooze and chime on and off
In alarm mode, a press of C switches the alarm and the snooze function on and off. A bell shows while the alarm is on, and SNZ shows while snooze is on.
Snooze, once on, rings the alarm for 10 seconds every 5 minutes, seven times in all.
For the hourly chime, press A while in alarm mode. That opens the chime screen, and C switches the chime on and off, with an icon on the display while it is on.
What the leaflet leaves open. It gives no way out of the chime screen. On every other screen C is what closes it, but on this one C is the switch itself.
How to use the stopwatch
The stopwatch counts at 1/100 second and stops at 23 hours 59 minutes 59.99 seconds. It keeps 60 records, numbered L01 to L60.
Elapsed time
- A — start
- A — stop
- A — continue from where it stopped
- A — stop again
- C — clear to zero
Four presses of A, then C to clear. Nothing else is needed for a straight timing run.
Split time
- A — start
- C — split; the first split is stored as L01
- C — split again; the records run up to L60
- A — stop
- C — page through the stored records, starting at the first group
- C held for 3 seconds — clear
Splits can only be read once the timer is stopped. While it runs, every press of C takes another split instead.
Dual time
Hold C for 3 seconds in dual time mode and the hour flashes. This screen has two items: B moves from the hour to the minute and back, and A changes the value. C closes the screen.
Countdown
The countdown runs up to 24 hours. Hold C for 3 seconds in countdown mode and the seconds flash.
B moves through three items: second, hour, minute. A changes the flashing value, with a hold to run it faster, and C ends the setting.
A starts and pauses the count. While it is paused, C returns it to the value it started from.
At zero the watch rings for 15 seconds. Any key stops the ring, and once the ring stops the countdown resets itself to its starting value.
If something looks wrong
| What you see | What it means | What to do |
|---|---|---|
| One field is flashing instead of the running time | A setting screen is open; the watch is not stopped | B to move to another item, A to change it, C to leave |
| The stopwatch kept counting after you left the screen | B changes mode without stopping the timer | Return to the stopwatch, A to stop, C for 3 seconds to clear |
| It beeps every hour on the hour | The hourly chime is switched on | Alarm mode, A for the chime screen, C to switch it off |
| The alarm came back five minutes later, and again | Snooze is on — SNZ is on the display | C in alarm mode until SNZ goes out |
| L01, L02 and so on show where the time should be | You are looking at the stored split records | C steps through them; C for 3 seconds clears them |
| The countdown jumped back to its starting value after ringing | The leaflet resets it automatically when the ring stops | Nothing to fix; set the value again if you need it |
| 12H will not change to 24H | The leaflet names B for this, but B also advances modes | Try A — the leaflet's Chinese edition names A for the switch |
Source: this page follows the SKMEI 2045 operation leaflet supplied with the watch, in its order and wording. The key diagram and the mode row are the leaflet's own figures. The troubleshooting table and the note about the 12/24-hour key are ours; where the leaflet is silent — the way out of the hourly chime screen — the text says so instead of filling the gap.