Basil Charles LE ROY ET FILS, PARIS
There is much confusion about Le Roy watches: this is a very common name in France and many firms used it. From the end of 18th Century up to the beginning of 20th Century many watches have been produced by a lot of different makers using this name or some of its variations. Quality varied too. Anyway, the "first" Le Roy was Julien (1686-1759) whose workshop definitely closed about in 1783, after a few years under the direction of his son Pierre. Every later maker nothing has to share with the first Le Roy.
The most famous Le Roy firms were surely in Paris: one founded about in 1785 with the name "Le Roy" later changed in "Le Roy & Cie" by Basil Charles Le Roy in Galerie Montpensier, 13 & 15 Palais Royal; another called formerly "Leroy", later "Le Roy et Fils", in Galerie Valois, 114 & 115 Palais Royal.