Having sold all three, they don't.
My Omega Pie Pan Constellation (564 movement) was purchased by my wife in 1967.
It has never needed to be repaired. Never. Yes, I have it cleaned and adjusted roughly every 5 years.
Since its last adjustment some 6 months ago, it has been keeping time within COSC tolerances.
I could not expect any better performance and reliability from any mechanical watch.
Truly a beautiful classic watch that has stood the test of time.