Up for grabs is an incredibly rare Gallet (produced by Racine) “Excel-O-Graph” chronograph, made circa mid-1960-1970s. These watches were made for scientific use, aviation, navigation, etc., and utilized a slide-rule rotating bezel for precise calculations.
This example is incredible condition. The case does not appear polished. The dial is mint, with no flaws or marks. The original lume is still present on the dial, aged to a golden yellow; the hands have been relumed at some point in the past.