1950s Juvenia Arithmo Calculator

Why This Watch Matters This Juvenia Arithmo with a less-commonly-seen automatic movement is striking on the wrist and will have you craving a Saturday morning bakers' dozen. The Full Story The Juvenia Arithmo, introduced in 1945, is a practical timepiece allowing the wearer to perform many calculations with the installment of a slide rule scale with a rotating bezel. A similar design concept can be seen with the Mimo Loga and Breitling Chronomat models. Before the electronic calculator came around, the slide rule was one of the more valuable and useful accessories one could own. Once you understand how the slide rule system works, you can calculate complicated equations, applied to anything from engineering to trigonometry needs. The Arithmo allows the wearer to never forget their slide rule at home as it is always right there on their wrist. Juvenia marketed the Arithmo back in the day as "the first practical calculating watch." While there were others on the market, the brand believe