The Villagers goals went to Alexi Pinto (2), Alan Ferguson and Harlem Simiona.
Bucklands Beach goals were both scored by Isaac Harraway.
"There were about 10 minutes to go when Harlem put it in the back of the net and it was pretty much over then," said Davis.
While reasonably happy with the changes he made for the cup game, Davis said he is unlikely to persist with them in the Northern League games.
As for the second round Davis said he would like to be drawn against a Bay side.
Davis had a chance to see one of his side's Northern League Division 2 rivals, Waiheke Island, who played Tauranga City in the Chatham Cup at Tauranga's Links Avenue yesterday.
In the WaiBOP premiership, Rotorua United's game against Te Awamutu was postponed.