Hi, I have a few watches with ETA movements whose timekeeping seems to have slowed down a bit since I bought them several months ago. Both were about two seconds fast per day, now they're about one second slow.
Has anyone else noticed this with their ETA-based watches?
I'm wondering if this is coincidence/random chance or if there is something inherent in the design that would cause this to happen. I do remember one forum member noting that regulated movements (e.g., ETA) have this tendency while free sprung movements (e.g., Rolex) do not ... but I lack the technical knowledge to confirm this.