Hi Michael,
I had a second look on your chronometre photo and I am sorry to say I must revoke my first assessment about the originality of your watch.
The hour and minute hand seem to have been painted black - at their base you can see that they are rose gold
which should look a bit more original...
Obviously somebody has painted them to enhance the contrast and to make the watch more readable.
It will be easy to bring them back to original with some appropriate solvent - try acetone...
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