Casio CA-90 calculator watch advertisement

Amusement park on your wrist.

Casio just put and exciting game and much more into their  best-selling calculator watch. "Counterattack" tests your reflexes as you destroy enemy missiles, increasing skill level as you play. Hear each shot fired-scoreboard tallies your hits. Complete battlefield action right on your wrist.

Eight digit calculator is easily worked even by large fingers. Two line display shows day, date, time. Features 24 hour repeating alarm, hourly chime, 12/24 time keeping in two time zones, stopwatch to 23:59:99.