Quality of WW Chan's "details" (i.e. buttons, zippers, etc)

Originally Posted by bigbucky 

Tried looking through a bunch of old posts but mostly long range shots. What kind of buttons do they use for suits? Wood, bone, plastic? Do you have to request one? Is there hand stitching on jacket and pants? Is that extra? What brand RTW suit would you compare it to in terms of the details (not fit or fabric). I'm sure this has been discussed before but can't find specific info.