This model from Casio has many useful features. Since the model is waterproof, you don't have to worry when you wash your hands. It weighs 92 g.
From Ernest Jones
G-Shock GG-B100-1A9ER Men's Mudmaster Black & Orange Rubber Strap Watch
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Mens Casio 'G-Shock' Black, Grey and Orange Plastic/Resin Quartz Chronograph Radio-Controlled Watch - Grey / Orange