Skmei 1251 Men's Digital Sports Watch owns powerful functions: 12/24-hour Mode, Dual Time Zones, Date, Week, Countdown, Chronograph, Independent Alarm, Backlight and 50m water resistant. With Taiwan IC chip set, time goes precisely. Feel free to wear the watch when you're showering or swimming.
Skmei 1251 Men's Waterproof Digital Sports Watch with Backlight US$6.05 (AU$8.24) Delivered @ Zapals
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Just note that at 49mm this is a large watch, and probably unsuitable for swimming though at this price you can always try.