damn i thought miyano was gonna get jealous w that watch action it kinda looked similar to...

I compared the watches, and Sasaki's watch is a metallic silver band with a circular face while his college friend's watch is a dark colored strap with a rectangular face. I'm guessing that Miyano was reminded that he found someone's watch in the nurse's office next to his head. He'll probably ask Sasaki if it's his watch.