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Casio F-91W - Wikipedia

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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] Designed by Ryūsuke Moriai as his first design for Casio,[5] the case of the F-91W measures 37.5 by 34.5 by 8.5 millimetres (1.48 by 1.36 by 0.33 in). The case is primarily made of resin,[6] with a stainless steel caseback and buttons, with the manufacturer's module number, 593, stamped on the caseback. The resin strap is 18 millimetres (0.71 in) at the fitting and 22 mm across the widest part of the lugs. The total weight is 21 grams (0.74 oz). The F-91W has a chronograph, featuring precision of 1⁄100 seconds with a count up to 59:59.99 (nearly one hour). The chronograph is also able to mark net and split times (i.e. laps). Other features include an hourly

Casio F-91W - Wikipedia Jump to content From Wikipedia, the free encyclopedia Digital watch produced since 1989 Casio F-91W Casio F-91W-1 watch with a resin case and resin strap 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 ] [ a ] as a successor of the F-87W, [ 2 ] it is popular for its low price, long battery life, and iconic design. [ 3 ] As of 2026, production of the watch was 100 million, which made it the m

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