we're the manufacturer specialise in led flashing watches
user manual for this binary watch:
The watch is a daily life waterproof LED watch.
Function of time:
the watch show time in 28 LEDs. It can automatic show time every a quarter-hour.
How to show time:
press A button or B button. Every one red LED indicate one hour, every one yellow LED indicate five minutes, and every one green LED indicate one minute.
Set the watch:
1.Pressing B button in 2 second into set mode, then the red LEDs will flash, and press A button to change hours.
2.Press B button and yellow LEDs will flash, and then press A button to change minutes.
3.Press B button and one yellow LED under the watch will flash, and then press A button to open or close the function of automatic show time.
4.Press B button and return to normal status.