Casio F91W

The Casio F91W is a 33 mm digital watch with a resin case and strap that has stayed essentially the same since 1989. It covers time, day and date, an alarm and a stopwatch, with a single LED backlight and a quartz movement whose battery lasts up to seven years. It suits anyone who wants a very light, inexpensive and reliable watch with an unmistakable silhouette.