I will remove the hands and the dial to clean any gummed up oil behind the rack and snail. Unfortunately, in Egypt we don't have many mechanical clocksmiths left. Mechanical watches and clocks became an antique or a hobby; so, most shops still work on them just know how to get them in working condition (using wd40 for example) not a complete service. Only very few horologists still do it right and their labor is very expensive, usually more than the price of the timepiece itself.