Assertion: pocket watch's movement | /r/HasProperty | introduced by elgin
Facets:
value: in 1960
type: TEMPORAL
Source sentences:
text: The "Trainmaster" with a Swiss made 21 jewel movement, introduced by Ball in 1959 and the "B.W. Raymond" with a 23 jewel American made movement, introduced by Elgin in 1960, were both high grade manual-wind wrist watches that were gradually approved for use on most American railroads.