Questions about example sentences with, and the definition and usage of "Watchmaker"

Q: Take that Swiss watchmaker, for instance. It turns out low-priced watches that sell *in high volume.

Is it okay to use "in large numbers" instead of "in high volume" in this context?

Q: An old watchmaker, Peter Hovenden think the old work that is making a watch without helping any mechanism is a stupid thing. His daughter, however, makes an evaluate that this kind of work is good. Their opinions are split into two opinions. The one regards that hand made watch that takes a lot of time to produce are valuable, another one is not. I think that Peter represents a man in pursuit of productivity and profit from work and his daughter, Annie represents a typical person who focuses on the pleasures of his work. Maybe in the next page, they will argue with a blacksmith. And her father will say that a blacksmith is not wise and daughter will disagree with her father. Productivity and pleasure from work are both important. You cannot ignore all of them, but I think we should not be tilted to one side. soa natural?