It happened around 4:20 p.m. back on October 10 at the Breitling Watch store located at the mall on N. Gulph Road.
Police say two men entered the store, walked over to a display and smashed the glass cases with a hammer.
It took less than a minute for the suspects to get away with several watches totaling $93,000, according to police.
Breitling employees told officers they saw the suspects exit the store and enter a back hallway of the mall.
Action News has reported on similar robberies at this Breitling location. About a year ago, a $43,000 theft was reported and in May, $40,000 in merchandise was stolen from the store.
We asked investigators if those cases had been solved, but they did not respond, nor did the mall as of Wednesday night.
Anyone with information on the case is asked to call police at 610-265-3232.