It reminds me of some similar things in the watch world:

- Yes Watches makes hybrid analog/digital watches with 24 hour dials and an inner LCD screen for daylight and other astronomical indicators: https://yeswatch.com/wrist-watch/worldwatch/our-story.html

- The Krayon Anywhere has a mechanical sunrise-sunset complication: https://www.hodinkee.com/articles/krayon-anywhere-universal-...

- Some Pebble watchfaces, e.g. Halcyon: https://apps.repebble.com/halcyon_67cb1c5fb7a02301b9a6e415