This is in response to comments in the "Omega X-33 Cal. 1666D TC Movement Accuracy Tracking" - thread.
Why are these tests at one temperature important?
I don't want to keep my watch at one temperature in real life, so why bother?
If you know how well the watch performs at one temperature, you can see how it performs at another. You can compare performances at different temperatures. You measure the effectiveness of the thermo compensation.
The effectiveness of the thermo-compensation is what we're really after. A well performing thermo compensation makes for an accurate watch 'in real life'.
It is terribly involved to set up a rig to keep the temperature constant. And it takes forever to take measurements. It may not be your thing after just buying a new watch.
May be later, when you're scratching your head about why your watch did so well this year, and so badly last.