David Nicolas LeCoultre was born on 1st August, 1745.
Dominicus Bauer was born on 1st August, 1756.
Augustin Weiß was born on 1st August, 1765.
Pierre-François Andrieu was born on 1st August, 1780 in Saint-Nicolas d'Aliermont.
Georg Haller was born on 1st August, 1793.
Georges-Frédéric Ablitzer was born on 1st August, 1831 in Sainte-Suzanne.
Armand-Alfred Sauteur was born on 1st August, 1841 in Saint-Nicolas d'Aliermont.
Eugène-Gustave Sauteur was born on 1st August, 1841 in Saint-Nicolas d'Aliermont.
Jules Ditisheim was born on 1st August, 1866 in La Chaux de Fonds.
Gustave Albert Huguenin was born on 1st August, 1871 in Le Locle.