Swiss watch brand
Else clues• The Origins of Intelligence in Children author
• Big name in child psychology
• Luxury watch brand
• Luxury watch maker
• Psychologist Jean
• Swiss child psychologist
• Swiss child psychologist Jean
• Swiss developmental psychologist
• Swiss psychologist
• Swiss psychologist Jean
• The Child's Conception of the World author
• Swiss psychologist remembered for his studies of cognitive development in children (1896-1980)