At a glance

This Casio Sports watch is 200m water resistant, making it perfect for free diving without scuba gear. The AQW-100 displays the moon age as well as tidal movements.


Auto Illuminator

When you tilt the watch towards you, an LED automatically illuminates the watch face

Display Illumination

A luminous coating provides long-term illumination in the dark after only a short exposure to light.

Tide Graph

Tidal movements are displayed graphically based on your current latitude and longitude, and the lunitidal interval.

Moon Age Display

Moon age and phase are shown on the display based on your current latitude and longitude

Dual Time

Simultaneous display of the current time in two different time zones.

Countdown Timer

A stopwatch that counts backwards: When 0 minutes, 0 seconds is reached, the timer emits a 10-second signal tone.


Accurate measurement of elapsed time with a touch of a button

Water Resistant

200 Metre/20 Bar

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