About: http://webisa.webdatacommons.org/381333914

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Acrylic, mineral, and sapphire are the three types of crystals commonly used in watches.
http://www.w3.org/ns/prov#wasQuotedFrom	amazon.com