Ref: I Dickie
The watch movement was sprayed at some point with WD40 and the result is that most of the brass parts have been corroded. Of particular concern was the co-axial escapement parts as these are restricted and not available to purchase. However, the escapement parts were not as affected and after cleaning, turned out to be fine. After dismantling the watch and soaking the movement parts in a cleaner, I then spent many hours cleaning off the corrosion and making sure all the debris between the teeth and pinion leaves was cleared.
The seconds wheel top jewel was damaged and I have dealt with that, and the hour wheel was missing – this has been replaced.
The seconds wheel post was also damaged and had to be dealt with. Also damaged was the hair spring which was bent out of shape. I managed to reset this back into its original shape.
Upon re-assembly and correct lubrication I am happy to report that the watch movement is now running well.
Here are some pictures detailing the damage WD40 can do to a watch movement.