Simple digital clock with only Roman numerals

(Time and date display)

Time display with Arabic numerals by tapping the screen

Setting: Select background color (8 colors)

Background type (4 types)

Adjustment of background brightness (0.2-1)

Time display type 3 types

Roman numeral fonts 4 types

Maximum font size 3 types

Time display with small Arabic numerals

To reflect the settings, redisplay the watch face.