Assertion: pocket watch | /r/CapableOf | become mass produced
Facets:
value: with waltham
type: OTHER
value: with elgin
type: OTHER
Source sentences:
text: As the pocket watch began to evolve, they were widely considered luxury items until the mid 19th century when American made pocket watches became mass produced with Waltham and Elgin at the forefront of the American watch industry.