Manufacturer | Casio |
---|---|
Type | Quartz |
Display | Digital |
Introduced | June 1989[1] |
The Casio F-91W is a digital watch manufactured by Japanese electronics company Casio. Introduced in June 1989[1] as a successor of the F-87W,[2] it is popular for its low price, long battery life and iconic design.[3] As of 2011, annual production of the watch is 3 million units, which makes it the most sold watch in the world.[4]