I asked nearly every sega place on internet and found only one alive person who had a theory that his saw his dad ordering same watches from a SEGA CATALOG back in the days.Upsidedown Fuji wrote:What an interesting Sega watch find. I wonder where it originally came from. Is the box it came in original? Maybe a UFO catcher or a promo item handed out during a convention perhaps?
So i assume they were official sega product. Maybe very low numbers were produced.
They does not look like promo watches to me though, as they are very well crafted.