There is a buzz, or perhaps, a 'ticking' that is being picked up around Coronado regarding the expansion of RESCO Instruments - a local company that designs and assembles high performance watches right here on the island.  Their new home will be at 120 C Avenue, Suite 120. Doors open May 5, 2012 from 9am-4pm and all are encouraged to come down to meet the team, check out the merchandise and see…