Why do watches need to be resealed ?

Almost all watches nowadays need to be resealed after opening their case. This is always the case with quality and Swiss brands such as Tag Heuer, Omega, Tissot, Longines, Rado etc. Resealing is not just about water resistance. It is about protection of the movement to delay service intervals and prolonging the life of the watch.
Almost all of the UK’s retail jewellers do not know this. The few jewellers that do know about watches needing to be resealed are either unable to do so, they dont have the correct tools and equipment, or they are simply not prepared to. They would rather just take the battery money and wash their hands of all responsibility of the watch should there be a problem in the future.
How many times have we all heard the local jeweller say; ‘we’ll have to send it off’, or ‘we can change the battery but cant guarantee it water resistance’, or ‘I can do the battery but it wont be water proof’. Is cutting corners an acceptible way of dealing with the customers high cost treasured possesssion? We think NOT. Would you drive your car into the BMW garage then let the car salesman have a go at servicing it? The answer is no.
A jeweller is a jeweller nowadays and not a watchmaker. The vast majority of people in retail jewellers should not be allowed anywhere near a nice watch that needs to be repaired. It is specialist job and should only be dealt with by specialist trained people.
