query on tree purchased

Hi Gerry, i purchased a tree at the new Lifestyle garden center at Clarenbridge Co Galway i liked it at now its my garden, now my question is could you tell me about it. The name is Acer Spaethii, its under leaves are of a puplish colour top is green a good tree for near sea areas i would like to know more about it and could not see it on here either many thanks Gerry. Regards Bryan