With Jerry Jaca, Bong Marata and Aldrin Ocanada at the firing end, the Jewellers broke away from a 62-62 third quarter standoff in the last 6:32 and never looked back.
Rodel Manuel, Ricky Ricafuente and Braulio Lim sparked a 10-2 run to push the Cooking Oil Masters within four, 74-78, time down to 1.25.
But their efforts went for naught when Tyrone Bautista and Lim himself failed to convert unmolested baskets in the last minute.
ML Kwarta Padala took third spot by beating the University of San Jose-Recoletos Jaguars, 73-60.