The top headstock was a little chipped/cracked in the lacquer, no big deal and it didn't influence the sound for the guitar it was just a cosmetic thing, but I wanted to see if I could fix so it won't show as much anymore.
On the Steward Mac Donald website, I found a video in which they showed some simple tricks to fix small chip's on a guitar body by using some power glue and 2000 grid sandpaper.
Where the main wood color was shown, I had to refill it fist with some matching color.
For this I used some simple water based paint and from there I put a little layer of transparent super glue over it, wait for it to harden so I could put on a second layer, following the same steps until I had a little bump shown.
To make it a smooth surface I used a taped razorblade, meaning that the tape could work as a guide of .003 mm high.
The rest would be sanded by a strip sanding technique from 400, 800, 1200 grid sandpaper, the final was the 2000 water based sandpaper while using the block sanding technique.
To finish it all, I started to buff and polish the surface and now the chipped lacquer looks so much better and this prevents the head stock to chip/crack and further in the future.