Exactly as Tom said.
You see Jeff, not only you're driving yourself crazy but you're doing it all wrong. All mechanical watches are affected by gravity, movement, and life. That is why they have a "margin" of tolerance. A Watch stored upside up or down or sideways to the left, or right... Or in your wrist while you sleep, or run, or shake a... Bottle of organic juice.., when it's hot weather, or cold, or Dwayne Johnson throws you 10 feet into a wall, or you see a movie, unless it's entourage because that will get you pretty restless, or your brother drops the watch from a car seat, no: two feet, no: one, barely 6 inches to the ground ALL those actions will have a direct impact on the watch. The balance of tensions and laws of physics may recover a little of whatever gain or loss it may have but invariably there will be a variance.
When you measure this variance on a controlled environment, unless you do like COSC and other testing entities and test consistently on a rotation of positions and conditions, of course the watch will tend to gain or loose a fairly consistent number....but then when you start living again and the conditions change that number will vary again. Also, make sure you're using the right testing method. If it's your phone, or an app, make sure you have full reception and the phone syncs up and refreshes prior to the first test, and on any subsequent testing, otherwise a good quartz watch may be more accurate.
And remember, at least for me; every time you personally open that watch and screw around with it, or take that scotch Brite pad and start polishing, it devaluates the value of the watch because even if this one has been serviced, unlike the last one, for all I known a fly or dust or an eyelash fell right into the movement while you where opening and closing and opening and closing again and again which even if you say you don't at this point with what I know of your personality I would not believe. So I'd have to take the watch for cleaning anyway.
I'm a part time photographer, and there are a couple more photographers here. If there's one thing I can tell you from changing lenses during shots is that no matter how careful I am dust always finds a way into the mirrors and sensors. Always. And they are designed to be changed! Don't fool yourself into believing otherwise.
I counsel you, again, to take it easy. Also do as some others have done and buy a couple of super cheap warches to tear apart and tinker with, that way you can expand on your hobby and knowledge safely and cheaply and without affecting a several thousand dollar watch that most likely is going to be sold.
My 2 cents...or 10 dollars more like.