Sounds like you got some bonus Swiss lint with your purchase! :-d I've got a Bathys with a similar issue, and everytime I'm almost irritated enough to have the watch opened up and cleaned, it disappears for a while.I have had a slight issue my watch over Xmas. I was away with the family, on waking up and looking at my watch I noticed a small (1mm diameter) 'skwiggle' like the letter 'G' in the centre on the watch. I assumed this was on the fascia. On wiping the face it was clear it was inside the watch. It certainly had never been there before. On getting up, walking dog etc, I looked at the face again and it had gone. Couple of days later it has now turned up to the left of the 'S' on Swiss Made. Where it has stayed ever since. I have no idea what it is and it's so small I can't get it on a photo. Still it's definately odd, maybe it's a tiny hair, or piece of dust. I'm certainly not sending it back. The watch can wait for a service in a few years and I'll get it cleaned out then.