This is a watch from Sega World Sydney, in 1997.
It's an analog type, with red hands & the face is literally Sonic's face. There are no numbers, so the big forward-facing face is the only design. The band is plain blue, but has 2 slogans in yellow. The first is "Gotta Juice!" and the other "Way To Go Bro!"
The bezel is a blue semi-transparent plastic. Look at the back though, SWS went an extra mile to ensure authenticity by (probably) etching the back with the logo and copyrights on the metal part. This is always nice to see, to pick watches away from the numerous easy to make phonies. There's no doubt that SWS had other watches for sale over its years of operation, and this is a fun one to see.