As discussed above, there were new conquests in the advancement of the handheld calculator following the fall of LED models. The leader in sales and manufacturing was TI, and they symbolically contributing to the Casio-dominated clock/calculator field with this entry. The DataChron may be considered an early electronic organizer as it packed as much technology available into this shirt pocket-sized unit. Full compliment of time, alarm and stopwatch functions behind an early UV-filtered LCD display. Sold for about $40 is 1977.

Jay has vivid memories of this one. In 1982, his local K-Mart store was closing out the KMC2000 calculator/clock combo. They were marked down to $4 from an original price of about $25 and he wanted this one bad. But would Jay’s mom give him an advance on his lawn mowing allowance? Newoooooooooooooooooooooooo! Instead, Jay had to wait about fifteen years to find this used model for…yes, $4! Still love you, mom 🙂

From the distinguished lineage of the Casio pocket clock/calculators comes the JQ-100 for your desktop. Yellow LCD is indicative of a display of the early filtered variety. Neat monthly calendar feature and with alarm and stopwatch.

We know little about Zykkor, except that they manufactured camera equipment and little calculators like these. This little TC-1 is as cute as it is functional giving you the requisite calculating power and full clock and alarm options to boot. We have had a few of these for sale in black and red but they’re gone.

Very cool calculator by Lloyd’s that has two displays, one for time & alarm, the other for computation output. The audible alarm is driven by a module that you plug into the underside of the unit that also hold batteries for power. Ambitious design!

By the early 80’s, nearly every electronics company had entered the calculator market, even audio giant like Toshiba. This little one surfaced in 1982 or so. Tiny calculator clock combo. Dig the forest & olive green color combination!

Litton Industries’ Monroe calculator line is long and diverse–their operations started in the US, but by the 1970s, had moved overseas. This little pocket multi-function model, the M-112 was manufactured in Japan probably around 1982. In addition to clock functions there’s a stopwatch, too.

Sure, we knew Pierre Cardin produced pants, but calculators too? This is their all-in-one device, assumedly marketed for busy travelling people. It combines a clock, calculator and AM/FM radio into one handy unit! There’s a telescopic antenna and the clock is armed with an alarm.

Here’s Sanyo’s all-in-one calculator, the RPM6950: a calculator, clock, and an AM/FM radio. It’s part of the fancy Horizon Collection, a product line that consisted of sleek and innovative products. Don’t be deceived by the design, the tuning is not digital. There’s a small dial on the top for that.

Canon was a big player in the calculator industry throughout the ’80s. This LC-34T was one of many models that had functionality beyond the standard mathematic calculations. It also had a clock with an alarm.