Sharing with you all something I devise by myself
during my period of watchmaking. As I always work on Chinese movt and
quartz. Getting spare hands and desire style/color of hands can be a
problem as support for this movt is not as wide as standard ETA 2824 and
Seiko Movt.
Plus as your watch making experienc accumulate, I believe most have
collected a wide variety of hands which you all do not want it to be
waste but used on other pin movt for other projects. Only the different
size hole is stopping it from happening.
Of cos, if the size hole is too small, simple! Get sharp pointed file to
increase the size hole but if the size hole is too big. What will you
do?
I always like to use super glue to narrow down the size hole and make them fit and secure to the pin holder.
I use a set of toothpick and super glue.
Dip a drop of super glue on a piece of paper , use the toothpick tip and dip on it.
Then try to spread around the hole of the hand hole to form a fine layer of super glue around the hole. Let the glue dry for about 20-30mins to make sure the glue is totally dry and harden.
Then try to fit it on the pin holder again. If the hole is too big, spread the glue to cover up the whole hole. Wait for it to dry about 3mins then poke on the center of the glue to make a small hole slightly smaller than the intended pin holder size. Then let the glue to complete dry and harden. After that mostly, the hands is able to fit and hold firmly onto the pin holder.
THis is one of my project watch using a ronda swiss quartz movt 715 fitted with hands left over from Seiko 7S26.
Same as second hand pin. If the second hand pin is too big to fit the desire pin. File the second hand pin holder smaller to fit the second hand. If its the hands problem like second hand pin is too big and not able to hold onto the pin holder firmly. Dip a very small amount of super glue onto the hole of the second hand pin and quickly fit onto the pin holder. You need to act fast since super glue dry very fast if not the hole might be seal by the super glue but the benefit of using super glue is, they are very strong and able to fix your second hand firmly onto the pin. It will not come off easily even with huge amount of shock.
The method I devise, is very simple and will not cost lots of money. With small amount of practice. It can be done fairly easy.