The Casio Men's G-Shock Watch G-7900A-7ER manages to combine a hugely informative dial with a clear design for instant reading under any pressure.

Functions

• Auto-Illuminator: An electro-luminescent panel causes the entire face to glow for easy reading. Auto Light automatically turns on the EL backlight when the watch is tilted towards your face for reading
• Shock resistant: Shock-resistant construction protects against impact and vibration
• Low-temperature resistant (-20°C): Even temperatures as low as -20°C have no effect on this watch
• Display Flasher: A light diode flashes as soon as an alarm, a countdown-time or the hour signal has been reached
• Moon data display: The phase of the moon is 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 luni-tidal interval
• World time function: Displays the current time in major cities and specific areas around the world
• 2 stopwatch functions - 1/100 sec - 1000 hours: Time lapsed, interval time and end time are measured to the nearest 1/100th of a second. This model has two independent stopwatches, each of it can time up to 1000 hours
• Yacht timer: The perfect prerequisite to every regatta and yacht race: The countdown start time can be set within a period of 1 to 10 minutes, usually 5 minutes. An audible signal sounds once after every elapsed minute. For the last ten seconds before the start, the signal sounds every second
• 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
• 5 multi alarms: This model is equipped with 5 independent multifunctional alarms. One of these alarms is a snooze alarm. This clock has the perfect alarm for any type of appointment. The model is equipped with a total of four repeat alarms: 1. Daily alarm, sounds at the same time each day, 2. Date alarm, e.g. to help you remember birthdays, 3. Monthly alarm, sounds on the same day at the same time each month, 4. Alarm for every day of a particular month
• Snooze feature: Each time you stop the alarm, it sounds again after a few minutes
• Button tones on/off: The button tones for using the mode button can be turned off. This means that the watch no longer beeps when switching from one function to another. Preset alarm or countdown timers remain active when the button tones are deactivated
• Automatic calendar: Once set, the automatic calendar always displays the correct date
• 12/24-hour timekeeping: Times can be displayed in either a 12-hour or 24-hour format
• Mineral glass: The tough, scratch-resistant mineral glass protects the watch against unsightly damage
• Resin case
• Resin band: Natural resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties
• The battery supplies the watch with sufficient energy for approx 2 years
• Water resistance classification (20 bar) - Perfect for free diving without scuba gear: the watch is water resistant to 20 bar (200 m). The metres value does not relate to a diving depth but to the air pressure used in the course of the water resistance test
• Accuracy: ±15 seconds per month
• Type of battery: CR2025
• Dimensions (H x W x D): approx. 52.4 x 50 x 17.7 mm
• Weight: Approx 68.2 g