Apparently 77W on the SQ324/SQ323 to/from AMS is phased in gradually:
SQ324 to AMS:
16, 23 and 30 April
Every Saturday, Monday and Thursday from 19 May
Every day from 1 July
SQ323 to SIN:
17 and 24 April, 1 May
Every Sunday, Tuesday and Friday from 20 May
Every day from 2 July.
Interestingly, for flights before the 1st of July (2nd from AMS), you can not book First Class....
SQ324 to AMS:
16, 23 and 30 April
Every Saturday, Monday and Thursday from 19 May
Every day from 1 July
SQ323 to SIN:
17 and 24 April, 1 May
Every Sunday, Tuesday and Friday from 20 May
Every day from 2 July.
Interestingly, for flights before the 1st of July (2nd from AMS), you can not book First Class....