Deconstruction of a Jules Jürgensen 5 minute repeater with foudroyante chronograph

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Deconstruction of a Jules Jürgensen 5 minute repeater with foudroyante chronograph

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In addition to being generally heavily over-engineered horology, the system of setting is unique to Jurgensen. It is five minute repeater with single push piece chronograph. The chronograph records up to 1 minute and the offset seconds has 5 incremental jumps in a single second (foudroyante). There are two trains in the movement and the watch is wound by winding the crown in both directions, winding both barrels. One for the going train, one for the chronograph/foudroyante. Another aspect of this watch which makes it unusual is the setting of the hour executed by tilting the bow towards the dial, then the crown adjusts the time instead of winding the mainsprings.