Re white tie is white tie , I agree that both the Met Gala , and The Nobel events in Sweden are both regarded white tie . However The Met Gala is an event with a different prescribed theme on every occasion . Guests are expected to to be fashion forward. The Nobel white tie events on the other hand, are to honour lifetime achievements of the winners . Whilst the dresses of the SRF ladies are always something I look forward to I don't expect to immediately think of the Met Gala when I see them.