18th century
Jean Romilly was born on 27th June, 1714 in Geneva.
Hans Ulrich Balber was born on 27th June, 1760.
19th century
Jaques Isaac Louis François Longchamp was born on 27th June, 1803 in Geneva.
Louis Audemars was born on 27th June, 1808.
Madeleine-Françoise Dumouchel was born on 27th June, 1813 in Saint-Nicolas d'Aliermont.
Jean Claudius Albert Gondy was born on 27th June, 1843 in Dyo.
Albert-Louis Legrand was born on 27th June, 1847 in Saint-Nicolas d'Aliermont.
Albert-Alfred Laurence was born on 27th June, 1863 in Saint-Nicolas d'Aliermont.
Berthe-Aimée Doudement was born on 27th June, 1865 in Saint-Nicolas d'Aliermont.
Charles Didisheim was born on 27th June, 1874 in Saint Imier.
Edmée-Maria-Cécile Legrand was born on 27th June, 1887 in Sotteville-Lès-Rouen.
Robert Lefranc was born on 27th June, 1898 in Rouen.
20th century
Jean Jacques Léo LeCoultre was born on 27th June, 1919 in Le Sentier, Le Chenit.