Double tap near 12 oclock to unlock watch. Single tap to relock.

Tap 3 to choose 12hr time, 24hr and 3 additional time zones.

Tap 6 for dim settings. Tap bottom right digital display update weather. Tap 6 and 4 for Ucolor. Tap center make hands disappear. Tap 9 oclock to cycle through 4 level dark filter. Tap S and R to operate chrono.