Thank you for encouragement @Sogeha, yes, I have plenty to read and learn. I started my watch hobby with vintage gen omega world. In that world, I should not and dare to touch anything and give it to expert. So my hand is totally untrained to do delicate stuff. I recall building a toy car model which made from metal back then in high school and I at that time have no patient on shaving it slow. Now I want Rolex sport world but I know that my financials will not support and there where I start thinking on building.
This forum I find very wonderful for a noob like me because I find very helpful people... Well, the truth is 1 of this established forum member is now helping me to build a dream watch for me and when the watch click.... I might deep dive into this world... (but need to invest on tool first)