No - the 777-300ER (SQ16) flight is a flat bed (it continues onwards ICN-SFO).

You can always make a dummy booking for your dates, and on the 'Select Flights" page, you can click on the aircraft type to see the seat map. The 777-300ER is a 1-2-1 type, which must at least be a long haul business class seat.

For the exact seat, try comparing with information on this page:
http://www.singaporeair.com/en_UK/fl...s/ouraircraft/

(the # of first class/business class seats on the aircraft (shown at the top left corner of each class in the seat map) will give you a clue)