Simplify the following text for a Grade 8 native English-speaking person.
Original: During the Great Depression Vacheron & Constantin found itself in a difficult situation and the only one to bring hope was Charles Constantin . He became the head of the company in 1936 and it was the first time since 1850s that a representative of the Constantin family received the position of Vacheron & Constantin 's president .
Simplified: Vacheron Constantin is a Swiss watch manufacture .