In the film "Hugo," what did Hugo's father and drunken uncle repair for a living?

In "Hugo," the character's father and drunken uncle specialized in repairing clocks. This profession is central to the film's themes and plot, particularly since the story unfolds in and around the bustling train station in Paris, where timekeeping devices play a significant role in the daily life and operations. The intricacies of clockwork also resonate with the mechanical aspects of the automaton that Hugo is trying to restore, mirroring his own journey of discovery and connection with his past. The clock repair symbolizes the importance of time, memory, and the passage of life, which are crucial elements of the narrative, making it a fitting choice in the context of the film.