quality better is relatively compare one with the other
case - material - 304 steel cant be better than 316 steel. then rolex use more expensive and better chemical resistant 904 steel
sinn u series use better sea water resistant submarine steel
titanium - many grades.... seiko titanium is definitely lighter and easier to get scratches than those used by iwc and ball....
precious metal? bronze, gold, rose gold, yellow gold.... platinum
high tech material - carbon, ceramic, zenium ....
special material like titanic steel...
- finishing - non finish, brush, beat blasted, polish....
- coating - pvd, dlc, citizen has its own coating
- processed material - sinn tegiment, damasko ice hardened,etc
- cutting - how precise is your cnc machine? more accurate mean better fit with other part...
- engraving - a master engrave or a beginner engrave is different
dial - material - silver, gold, brass, moon dust?
finishing - engrave, skeleton, or just painting
marker - polish? luminous ( different grade), diamond (so many grade)....
hand - a gs hands is better than rolex hands right? a hand blued still is more expensive then a chemical blued steel right?
crown - screw in is better than non screw in right? a viton gasket is better than a silicon rubber right? a silicon is better than normal rubber right?
- cutting & finishing - a quality one wont cut your finger when u wind it
- a more precise cut will be easier to screw in than the not that precise one right?
movement - reliability - a rolex is more reliable than a seiko right?
- material
- balance spring - anachron better than nivaflex-1 right? paralex? breguet blued spring?
- balance wheel - glucydur is better than single type metal one right?
- stone - diamond better than ruby then steel or brass right?
- coating - gold, rose gold, rhodium is much more expensive nickel right?
- level of finishing - polish better than non right? hand finish more human feel right? bevel? a screwed gold chaton is better than non right?
- decoration - skeleton, engraving, gold plated on engraved area, etc
- accuracy - a COSC eta is more accurate than a non cosc right? a screwed balance better than non right?
crystal - coating, material, thickness.....
bracelet - finishing, thickness, design, comfort level....
strap - material alone alot of different
buckle - type folding, butterfly, pin.... material, coating, finishing, design....
overall design - is subjective right? but majority like will end up superior one to another in used market
am i answer your question?