| A rare early 20th Century double sided Swiss minute recording chronograph in a gunmetal case. Gilt three quarter plate keyless movement with minute recording chronograph visible through the chronograph ring on the back. Plain cock with polished steel micrometer regulator, compensation balance, blue steel
overcoil hairspring. Club foot lever escapement. White enamel dial signed by the retailer with centre seconds and subsidiary minute recording, black Arabic numerals. Blue steel seconds hand, gilt hands. Graduated spiral scale for calculating speed in miles per hour, marked in black, red, blue, yellow, green and purple. The first six minute segments marked in similar colours to indicate which section of the scale to use. On the opposite face a narrow enamel ring, the seconds
marked in red and a chronograph scale in black marked "Kilometres a l'Heure, Base de 100m". Gunmetal double sided case with gilt hinges, bezels, thumb piece and winding button.
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