Click here to see more Galltet watches Age: 1960's Features: Rare Gallet by Racine MultiChron Excel-O-Graph Model 5705 Chronograph with Large 43mm Case, Original Dial and Excelsior Park Swiss Movement. Triple Signed Gallet / Racine on the Dial, Case and Movement. The Excel-O-Graph was marketed as a "real mini-computer" with a slide rule bezel that allowed calculations for multiplication, division, speed, travel time and distance in addition to the normal 30 minute and 12 hour counter recording. The watch also can perform conversion of speed per hour into speed per minute and conversions or speed per second into speed per hour.