I had the modification done by a certain Yook Hong, but the results were really bad. When I sent my dispatch boy to collect the watch from him, he told me he has to redo the mod because the seconds hand fell off. He sent me this picture.

One day later, he had it ready again. When I received it, I noticed than the hands are misaligned.

He said he can redo the mod. Then, I found out the real reason for the misalignment: the minute hand brushes against the hour hand when they pass over each other. Now, the hour hand has abrasion marks on its surface.
Yook Hong asked me if the hands are original Seiko. What a stupid statement. I told him the lume tells you everything.
Anyway, I wasted RM80 plus transport costs and now I have a scratched hour hand. The hands are still abrading.
Also, he managed to scratch the case back while opening it. The scratch is quite obvious.
This Yook Hong knows nothing about watches. Useless.
That's pretty bad.