Casio’s new calculator watches will take you back to 6th grade math class [Video]

Why it matters: Casio has introduced a modern version of its iconic calculator watch, itself based on the Casio Mini personal calculator first released in the early 70s. The new creation is a blast from the past. It utilizes green text on a negative LCD, and a keypad with original fonts that are separated by grid lines. Even the mode button, colored red, is a nod to the calculator’s power indicator.

The watches’ calculator function can add, subtract, multiply, and divide up to eight digits. As for watch functions, you get dual time, an alarm, stopwatch functionality, and more. Casio said the watch’s band is made of bio-based resin, which should minimize the impact on the environment.

The wearable is water resistant and is good for up to five years of runtime on a single battery. It utilizes CR2016 coin …