The Casio Men's Marine Sport Collection Watch AQW-100D-1AVEF is a versatile watch with many seafaring functions.

The AQW-100D-1AVEF features a Tide Graph display function that graphically displays tidal movements based on your current longitude and latitude and the lunitidal interval. Based on your current longitude and latitude position, the AQW-100D-1AVEF can also provide you with information about the moon age and phase.

Also perfect for free diving without scuba gear, the AQW-100D-1AVEF is water resistant to 20 bar (200 m; ISO 2281).

In addition to the aquatic attributes, the AQW-100D-1AVEF also provides excellent time-keeping capabilities with a dual digital and analogue display. The second time zone feature is ideal for those frequently making international calls.

With a stopwatch function, 1/1 min timer, 3 multi alarms and an hourly time signal, the AQW-100D-1AVEF ensures you have the correct time in any situation.

For telling the time in the dark, the AMW-320RD-2AVEF features NeoBrite illuminated hands coupled with an electro-luminescent backlight to ensure no more fumbling about for a light.

Features

• EL Backlight: An electro-luminescent panel causes the entire face to glow for easy reading. Includes an After-Glow feature that keeps the EL backlight turned on for a few seconds after the light button is released
• Neobrite: A luminous coating provides long-term illumination in the dark after only a short exposure to light
• Moon Age Display: Moon age and phase are shown on the display based on your current latitude and longitude
• Tide Graph Display: Tidal movements are displayed graphically based on your current latitude and longitude and the lunitidal interval
• Second time zone
• Stopwatch function (1/100 - 24 hr): Accurate measurement of elapsed time with the touch of a button, the fraction indicates the unit of measurement, while the time figure indicates the maximum time measurement
• Timer - 1/1 min - 24 hours (with automatic repeat): For fans of precision, the countdown timers help you to remember specific or recurring events by giving off an audible signal at a preset time. They then count back automatically from the preset time. The time can be set to the nearest minute and up to 24 hours in advance. Ideal for people who need to take medicines every day or those who do interval training
• 3 Multi Alarm, Hourly Time Signal: Multi Alarm lets you set a daily alarm (time setting only), or an alarm for a specific time on a specific day (month, day, and time setting). The value indicates how many multi-alarms are available. The hourly time signal causes the watch to beep every hour on the hour
• Snooze Feature: Each time you stop the alarm, it sounds again after a few minutes
• Full Auto Calendar: Allowances are made automatically for months of different lengths, in case date corrections for leap years are required

Specification

• 3-year battery life
• 12/24 hour time format
• Stainless steel/resin case
• Stainless steel band
• Dimensions (H x W x D): 48.2 x 46 x 14.5 mm
• Weight: 106 g