The time telling on this watch is unusual – the position of the sun or moon in the crescent shape indicates the hours. The crescent shaped sky represents 12 hours with the time running from left to right. At 6am the sun ‘rises’ on the left of the dial. The sun slowly climbs in the sky until it reaches the apex of the crescent noon. The sun descends until it reaches the right hand marker at 6pm. After 6pm the Sun ‘sets’ and disappears from view, meanwhile the Moon ‘rises’ on the left. The position of the Moon in the sky shows the hours from 6pm until 6am.
(Image, H/T Gizmodo)