Got a fairly new (couple months old) aqua terra 8900. It's been keeping great time. Just over .5 seconds a day gain. Until today. It was less than 2 seconds fast since I set it saturday for daylight saving ending. I actually checked it this morning from the nist site. I went walking (fast walking, getting old sucks!) and for some reason, checked it against my work computer and it was fast. So I compared it to NIST again and it had gained about 8 seconds in that 30 minute walk.
Has anyone else noticed this on their omega. I haven't. I had a seiko do this before, but never an omega. Other than that, this watch has been great and kept super time.