Watch Cleaning: Clean Oil & Adjust (COA)
Watches are typically cleaned by removing each and every wheel, spring, and gear one at a time. Then the next step is to clean each one with a special cleaning solution. The main problem that most movements face is that they become rusty at some point. The crown or stem gets loose water creeps in an the watch then runs slow and will very quickly spread if not caught in time.
Some parts need to be cleaned in order to remove the rust and sometimes the new parts need to be replaced. Then the oil is added and oil is necessary part of the watch in order to decrease friction between the parts. Next the watch must be adjusted in order to make sure that all parts are put back in correctly. The last and final stage of a proper clean oil and adjust of a watch is to regulate the movement. Here at Jones & Son we allow for a one week observation period to let the movement sit and be observed by one of our expert watchmakers in order to make any minor adjustments that the watch which may need to function properly.