correct, a watch is not a technical drawing.
So many watches are using all upright numbers:
89c1c048-ecce-45b0-8ba0-afcfbd48b888-image.png
If numbers rotate around the center, then this is the watchmaker’s standard:
2c00d792-0ad6-4ae7-b7bf-5a6dc3b83148-image.png
4ccb1c35-85df-400d-94cb-e076a60b1446-image.png