Watch Casio G-Shock Octagon GA-2100SU-1AER

Waterproof and shockproof sports watch with quartz movement. The 33mm-diameter analog-digital dial is equipped with Auto-LED illumination. The illumination function Dual Illuminator can be activated manually or by raising your hand with the watch and zooming in towards your face. The Fluorescent Neobrite coating on the hands provides long-lasting illumination in the dark. The mineral glass used to shield the dial of the watch features fifth grade on the Mohs hardness scale.
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The use of the G-Shock system and carbon fiber-reinforced case increases the watch's resistance to shock and mechanical damage. The model features high water resistance and is resistant to dives up to 200 meters (20 bar), which allows for safe use while swimming or even diving. The system also provides protection against the effects of magnetic fields (ISO Standard 764).
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Daily time is displayed in12/24 hour format. In addition, the watch is equipped with: 5 daily alarms with a snooze function, an extensive perpetual calendar, a stopwatch with a measurement length of up to 24 h and an accuracy of 1/100 s, and a timer counting down to 24 h. The world time function allows you to read the time in different time zones. The watch is equipped with average speed measurement on the distance traveled.
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The model is powered by two batteries SR726W, the manufacturer specifies a battery life of 3 years. The watch comes with an elastic strap made of olive green plastic. The circumference of the strap is adjustable with a metal buckle.

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Technical data
. Model: GA-2100SU-1AER
. Material: quartz, plastic, carbon fiber
. Movement: quartz Miyota
. Time display: analog-digital
Envelope width: 45 mm
Thickness of the envelope: 12 mm
Dial diameter: 33 mm
Maximum strap circumference: 210 mm
Power supply: 2 x battery SR726W
Weight: 51 g
Manufacturer: Casio, Japan