Please message me if you have any questions. Thanks! 

From Casio: 
The G-LIDE sports line for the world’s top surfers and extreme sports fans. 

These vibrant watches begin with the DW-5600, and take it up a notch with the tide graph function that every surfer needs. The metal dial and sputter coating mirror finish deliver an even higher quality display of the information you want, in a streamlined design that your wrist will love. 

World time

World time 29 time zones (48 cities), daylight saving on/off

Moon data

Moon data (moon age of the input data, moon phase graph)

Tide graph

Tide graph (tide level for specific date and time)

Stopwatch

1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Other: 5-second countdown auto start

Timer

Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Others: Auto-repeat, progress beeper

Alarm/hourly time signal

Hourly time signal
Multi-function alarms 3 independent multi-function alarms (2 one-time alarms and 1 snooze alarm)

Flash alert feature

Flash alert Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer progress beeper, and stopwatch auto start

Light

Electro-luminescent backlight Auto light switch, afterglow

Light color

EL:Blue Green

Calendar

Full auto-calendar (to year 2099)

Mute feature

Button operation tone on/off

Accuracy

Accuracy: ±15 seconds per month

Other features

12/24-hour format
Regular timekeeping: Hour, minute, second, pm, month, date, day