That’s a Tissot chronograph wristwatch. A few details I can see from the image: • Dial: Black with three subdials (typical chronograph layout). • Branding: “TISSOT 1853” printed under 12 o’clock. • Functions: The subdials likely track elapsed seconds, minutes, and possibly hours for the stopwatch function. • Bezel: Marked with a tachymeter scale, used to measure speed based on time. • Case & bracelet: Stainless steel, showing noticeable wear—scratches and scuffs suggest it’s been well used. • Pushers: Two buttons on the side for starting/stopping and resetting the chronograph. Overall, it looks like a sporty yet classic Tissot quartz chronograph, probably from the PRC or similar line.