Casio F-91W UNBOXINGN And How to Set Time and Date

The Casio F-91W is a quartz digital watch model, manufactured by the Japanese company Casio Computer Co., Ltd. It is a part of the Casio F-series of digital watches. The original F-91W was introduced in 1991 and is still in production and demand.[1] It is popular for its simplicity, reliability, and unpretentious, clean design. The watch is available in several variants. Casio does not release sales figures for the model, but admits it continues to sell "well"
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https://en.wikipedia.org/wiki/Casio_F-91W