Casio is an electronics manufacturing company that was founded in 1946 by Tadao Kashio. The brand has a versatile portfolio, from musical instruments and digital cameras to analogue and digital watches. The company rose to popularity quickly after releasing its first-ever product, a cigarette holder, which proved to be a huge success. Casio became involved in electronics in 1954 when they released Japan's first electro-mechanical calculator. During the “Quartz Revolution” in the 1970s, Casio expanded and became one of the first brands to create quartz watches which solidified the brand as an innovator in horological society. The brand’s timepieces are affordable and long-wearing, making them a favourite to both enthusiasts and everyday people. With the large variety of wristwatches and their commitment to progress, it is no surprise Casio has remained amongst the giants in the industry. 

G-shock is a chic subsidiary of Casio with a cult following. The larger-than-life brand image draws customer after customer who want to get their hands on an iconic piece of design.  Not only are their watches extremely distinctive but you get superior protection with trademark shock-resistance. A profusion of features, absolute daily reliability and a little bit of attitude all make for an enticing watch. A brand that has been bringing us tough, technologically superior timepieces in stylish, chunky cases since 1983.

Core Features of the Casio G-Shock:

• G-Shock watches are water-resistant up to at least 10 bars or 100 meters.
• The hands and the indices of the models are luminescent with Neobrite coating.
• Incredibly durable, the watch is shock-resistant, vibration resistant and centrifugal force resistant.

Model Specifications GA-100-1A4ER:

• This model comes in black with sporty red accents
• Features are displayed via a 35mm dial
• A large 51.2mm diameter shock-resistant case protects the movement. 
• The watch features 200m water-resistance (ISO 22810 standards) and is a full diving watch
• The model is low temperature resistant for added protection.
• A reverse LCD display makes for crisp viewing
• A hand shift function gives you easy viewing of all details
• An accurate 1/100- second stopwatch features
• A velocity indicator gives you average journey speeds
• The watch has a world-time function
• 5 alarms with snooze function are included for convenience 
• A countdown timer is included 
• An automatic calendar keeps you on track without adjustments once set
• A 100 lap memory lap timer enhances your exercise
• This collection features a new carbon core structure
• A black resin band compliments
• A black dial comes with digital and analogue displays 
• The band fastens with a pin buckle