The bezel on the Calculator is split so the outer ring can be rotated while the inner is stationary.
The calculator can do simple mathematical equations like multiplication. It can also do more complex equations like calculate fuel consumption, speed, distance, and rate of elevation.
The Calculator was Heuer's answer to the Breitling Navitimer.
CIRCA: 1977 CASE MATERIAL: Stainless steel CASE DIAMETER: 46mm BRACELET MATERIAL: Stainless steel BRACELET SIZE: 7 inches / 177.8mm DIAL: Blue MOVEMENT: Automatic FUNCTIONS: Chronograph, date CALIBER: 12
