Vintage Heuer Trackmate Stopwatch Used/Working

Used 1970s Heuer Trackmate Stopwatch. This stopwatch does work though it could probably use a tune up and cleaning. I have not cleaned the internals of the watch or the outside other than wipe it down with a clean no scratch cloth. The back looks to have an original Heuer sticker on it. I did not clean it as I think a professional watchmaker should do that kind of work. Reset button occasionally sticks. Great collectors piece for a watch fan!