VOR-batim

This standalone Apple Watch app allows GA pilots to lookup VOR (Very High Frequency (VHF) Omni-Directional Range) navigational aid information.
Includes a lookup feature that allows searching for VORs by identifier, or partial match. Location of VOR can shown on a map.
Includes all FAA listed VOR, VORTAC, VOR/DME, and VOT facilities plus all other published navigational aids (NavAids) as of the release date.
No connection required to operate. Requires Watch OS version 9.0 or higher.

From the same developer of "Nearest Airport" and "Nearest Weather Station", also for the watch.