Astronomica Ultra

24 h sun-path dial with moon phase and an indicative tide curve; tilt stars.

A 24-hour dial with midnight at the top and noon at the bottom. A sun bead rides the ring at local solar time, corrected by the equation of time, and the horizon splits the dial into a starry night above and a day sky below that brightens towards noon. Moon phase, date and digital time sit in the night half, sunrise and sunset on the horizon, and the stars shift slightly as you tilt your wrist.

The day half carries an indicative tide curve derived from the moon's age. It is not tied to any port and is not for navigation.

Five dial finishes, from silvered sunburst to guilloché and plain enamel. For Wear OS 4 and newer.