If you're unfamiliar with the PATH, it's a bit hard to find this gem of a family-owned business. I'm directionally challenged myself and rely on *landmarks* but the stores/cafes change so often that any current advice I give you will likely get you even more lost) In my last visit, I called the store to ask them to direct me.
This is my go-to place for all things watch-related. (As their name suggests, they also sell jewellery & watches.) Compared to other watch repair shops, the prices are a steal and the man behind the counter works quickly. During my last visit around closing time, it took him 10 minutes to both replace my watch band *and* my batteries.