OW - SELECTRON CALCULATOR
Standing its ground as the Breitling Navitimer’s historical challenger, the Selectron’s slide rule enables its user to perform simple arithmetic operations, conversions and other calculations making it extremely handy in a time before calculators.
Stainless steel, screw-down case back, screw-down crown, slide-rule rotating bezel
660 ft/20 ATM
Mechanical 17R, Hours Minutes Seconds Date