I set it once it drifts far enough from correct time or if the power reserve runs out

Above. But my Tissot has no micro adjustment so depending on the day it slides over the bone.

Tiny machines are cool.

But the shape/texture of them catches the light and looks nice.

Does a watch with a tidal complication exist?

Maybe you can get one for that now. Mine cost £399 when it was new in 2018.

Tommy Wiseau: I did not make this, it’s not true! I did not make this watch!