Independents

when use black polish does it mean only on parts with steel material? when 18K gold case or 18k gold parts wants to have perfect finish can we say it is black polished? thanks

So shiny that, at the right angle, not even light can escape and so it appears black.

Living in Warsaw?

I would describe it as Labor-intensive hand polishing of minor surfaces in the watch movement or dial. Cazalea

NT

for a very good mechanical reason in the very early days of horology and it was NOT because it looks pretty. In the days when watches were not in sealed cases (because they had not yet been invented) and humidity and dampness were a potential problem even...