circa 1930, series 1, the unsigned circular cream coloured dial, 32mm diameter, with centre chronograph sweep, subsidiary minutes register at six o'clock and subsidiary hour and minute indicator at 12 o'clock, several timing tracks, unsigned and unnumbered Venus 140 mechanical crown wind movement decorated with 'The Côtes de Genève' and with start/stop/reset mono pusher at 4 o'clock, case, 34mm diameter, yellowed perspex crystal, verso snap on with engraved initials, to an aftermarket brown leather strap with pin buckleThe MultiChron Regulator chronograph was introduced by Gallet in 1929 and was specifically designed for applications that prioritised timing over the time of the day. Featuring a small hours and minutes subdial at 12 o’clock, the rest of the dial was an unobstructed view of the chronograph function with a minute register subdial at 6 o’clock. Soon after its introduction, the Gallet Regulator became the time recording instrument of choice for pilots, doctors, technicians and sports professionals, and was the first official wrist-worn chronograph of the Indianapolis 500 races. Powered by the Venus 140, it was originally produced - as with this example - with a single pusher to start, stop and reset the timer mechanism. The second series, introduced in 1935 with an additional pusher, provided the wearer with the ability to start and pause the timer without fully resetting the timer hands back to zero. Internal company documents from 1929 show that Gallet acquired exclusive control of the calibre 140 movement from the Venus company and supplied "private-labelled" regulator watches to Rolex, Girard Perregaux, Harvard (Goerring), and other Swiss manufacturers. Some were supplied 'pre-labelled' and others - as with this example - were supplied 'sterile' to allow companies to apply their own branding.