This might be a stupid question. I keep track of my watches rate with an app on my phone. For a long time, I wore a Seiko 5 (snxs79) with a non-hacking movement. I had some real luck of the draw and it ran extremely well, and moreso, it happened to run in a way, so that it would ever so slightly loose time when it lay 3 o’clock up over night, and it would gain time when it lay flat at night. So, whenever it was 5-10 seconds ahead of atomic, I simply would lay it 3 o’clock up at night for a few days, and this way I kept it continously around +5s for several months on end. I didn’t set it once.

Now. If I bought a high end automatic. A COSC chronometer movement or higher. Would a watch-maker, if I asked them to, be able to replicate this behaviour? Could they make the watch reliably aim slightly under 0s/d in the 3 o’clock position, and slightly over 0s/day of if in the flat position?