Joseph-Thaddeus Winnerl
1799 - 1886
Joseph-Thaddeus Winnerl © mhe
Austrian chronometer maker.
Established in Paris.
Construction of chronometers and an astronomic Clock for the Paris Observatory.
Key dates
1831
Invention of a first split second chronograph mechanism (one-hand split second system).
1838
Invention of a second split second mechanism (system with two chronograph hands) including a split time counter with a heart-shaped cam used to reset the chronograph hands.