Investigators in Upper Merion Township are seeking three men who stole $477,000 worth of watches Wednesday in a "smash and grab" at the King of Prussia Plaza.
Police Sgt. Jeff Maurer said officers were called at 2:47 p.m. to Tourneau Inc., a luxury watch store at 160 N. Gulph Rd., King of Prussia.
Detectives said the three entered the store and threatened the security guard with a small sledgehammer. The first man smashed the glass display cases with the hammer, allowing the other two to grab the watches, Maurer said.