This is the SKMEI 2016 operation manual. The watch carries hour, minute, second, month and day on a four-digit LCD, with an EL backlight for reading it in the dark. Four keys do everything, two on each side of the case.
The four keys
The drawing settles which key is where, and the manual's own labels give each one a job:
- A — upper left, marked Light. It only works the backlight.
- B — lower left, marked Set. It enters the setting and confirms each item.
- C — lower right, marked Mode.
- D — upper right, marked Mode, the same job as C.
C and D are interchangeable: wherever the manual says "press C/D key", either one does the same thing. Three controls, then — light, set and mode — with mode doubled on both sides of the case.
The three display states
The feature line lists five things the display can carry — hour, minute, second, month, day — and the operation line spreads them over three states you step through with C or D from the time state:
| Press C or D | State | What the display carries |
|---|---|---|
| once | Date state | Month and day |
| twice | Second state | The seconds |
| three times | Time state | Hour and minute — shown in the drawing as 10 over 36 |
The leaflet counts from the time state and closes the loop at three. Nothing else changes state on this watch, and C or D only alters a value once you are inside the setting.
Setting the date and time
Two presses of B open the setting. From there the same key both walks through the four items and confirms them, in this order:
- Press B twice to enter setting mode.
- With month showing, press C or D to adjust it, then press B to confirm and move on.
- Set day the same way, then B.
- Set hour, then B.
- Set minute, then B.
Those four items are the whole list — no year, no 12/24-hour switch. To move a value faster, hold C or D down instead of tapping: a long press adjusts quickly.
Two things the leaflet leaves open, worth knowing before you start. It does not say what a single press of B does at the time state — it only names two presses as the way in, and single presses as the way to confirm. Nor does it describe leaving the setting: the sequence ends at minute, and B is the key that confirms.
The backlight
Press A and the EL backlight lights for 3 seconds. The manual says this works at any state, so you do not have to be showing the time for it — the light comes on over the date or the seconds just the same. It goes out after the three seconds on its own, and the manual gives no way to switch it off earlier.
If a key does not respond
| What you see | What it means | What to do |
|---|---|---|
| C and D change the display but nothing can be adjusted | You are in a display state, not in the setting | Press B twice to enter setting mode |
| The month changes but the day does not | B has not been pressed to confirm the month yet | Press B to move to the day, then adjust |
| A value jumps far past the one you wanted | C or D was held down and ran quickly | Tap C or D one step at a time to come back |
Source: the printed SKMEI 2016 operation manual supplied with the watch, whose English page carries the feature list, the state sequence, the setting sequence and the 3-second backlight note as reproduced above; the drawing is the leaflet's own. The key positions come from that drawing, and the reading of C and D as one function on two keys is the manual's own "press C/D key" wording. The explanation of which state shows which digits, the note on what the leaflet does not describe, and the table above are our own; where the manual is silent — what one press of B does, how the setting is left, and anything about the battery — this page says so rather than filling the gap.