Features Limited Edition 2012 pieces
3 time zones, date at 4 h
Slide-rule function with flange adjustable by crown
at pos. 2 h, 20 simple calculations possible
e.g. division, multiplication, multiple conversions
Speed per hour, fuel consumption, height calculations
Distance during ascent / descent
Conversion table C° (Celsius) into F° (Fahrenheit)
engraved on the case back.