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.

Core Features of the Casio Core Collection:

• From analogue to digital to dual, the Casio Core collection watches feature a variety of different dial displays.
• There are also a variety of different straps and bracelets to suit every taste.
• Each Core Collection watch is at least splash-resistant. 

Model Specifications MRW-230H-1E3VEF:

• The 44.6mm case and bracelet of the watch are made of black resin. 
• The black dial features a mix of dot and baton indices as well as Neo-Brite coated hour and minute hands and an orange second hand. 
• The dial also features a day-date aperture at 3 o'clock. 
• A sleek rotary bezel, with a green aluminium ring, frames the dial. 
• Once set, the automatic calendar always displays the correct date. 
• This model is water-resistant up to 100 metres (10 bar).
• Movement Type - Quartz.