[defap]

So many features are broken in this orientation that I doubt anyone would be surprised by this.

[AckSyn]

iirc, you can set the orientation in the Watch settings. The OS and software should adjust.

[comex]

The orientation settings let you choose left or right wrist and, separately, left or right facing Digital Crown, which means you can turn the watch "upside down" and wear it that way. But it doesn't have a setting for wearing it on the inside of the wrist.