Description: Gilt brass, verge fusee movement with inverted fusee. Three armed balance with steel balance spring, small gilt brass cock, back plate signed ‘Julien Le Roy’ honoring Pierre’s father and numbered ‘4389’. The production number dating the movement definitively after Julien Le Roy’s death as described above. Small square baluster pillars. Enameled copper dial signed ‘Julien Le Roy’.
Additional Info:
This movement has been built not long after Julien Le Roy`s death, estimated roughly at production number 3500. It represents one of the first known movements made by Pierre Le Roy (fils) commemorating his father and using the inverted fusee.
The inverted fusee used by Pierre Le Roy (fils)
The inverted fusee (tip of the fusee towards the dial) is a special feature of a few rare examples of Pierre Le Roy’s work, distributing the force on the chain more evenly than in the normally used configuration with the fusee tip towards the back plate. The construction of such an inverted fusee is more complex and delicate, so as towards 1770 movements got completely of different construction after the introduction of the Lépine-movement type, no one adopted this amelioration.
Antiquarian Horology 
