TAVAN - Antoine, Geneva
An eminent maker of watches and chronometers.
made 10 large scale models of escapements about 1805, to the order of Melly Frères, now in 'Museum of École d'Horlogerie', Geneva.
They included the verge, virgule, dupley, lever, 'Arnold' with spring and pivoted detent and three of hisown invention.
Watch with ordinary seconds hand and independent sweep central seconds hand (Geneva Museum)
Devised a chronometer escapement in 1819, and a lever escapement, called 'échappement anchor' with pointed teeth.