The combination micro head hammer is designed for precision hammering work as well as watch repair and maintenance.  The hammer has an iron head on one side with nylon on the other, so you can take care of all of your maintenance needs in one tool.  While both will withstand any work you are doing, the nylon tip will withstand even harder use than the iron head, making your hammer last longer.  Check out the hammer at Stuller.com/tools.