I love watches but in reality the complications on most watches are pretty useless. We all know a mobile phone performs any of the functions far more efficiently. The mechanism in the YM II, regardless of how specialist you may think it is, is still impressive.
I have GMTs but am perfectly capable of adding or subtracting two numbers of or equal to 12. Similarly, the date is helpful but I don’t need a reminder of the month or day of week. For me it’s the mechanism that makes a difference regardless of the usefulness of the complications.
Guess what I’m saying is the usefulness of the skydweller does not make it more attractive to me than the YM II. Anyhow that’s just my opinion.