There's a place upstairs at 21 Wicklow Street, got a watch battery replaced there a while back. After the few jewlers I tried couldn't open it, they all recommended them. There's a watch maker and clock maker based in the same workshop. Mad place with all manner of clocks ticking tocking away. Few complimentary articles form the national press going back over the years also framed on the walls.
Certainly would beat the repairer in Kilkenny my parents sent a clock they got as a wedding present to for repair, only to get it back with the entire movement replaced with a modern quartz one!!!
Leo