Cube of space from space, 2021.

Space sculptures, 2021.

Space watch, 2021.

Earth rotation period is 1 day, and the speed of watch is 0%.

Saturn rotation period is 10 hours 42 minutes, and the speed of the watch is +114%.

Mercury rotation period is 58 days, and the speed of the watch is -5800%.

Inter-planetary watches, 2021. The speed of the watch arms can be adjusted faster or slower according to the rotation period of the planet.