The commercial, called "fondue", was created by Mark Gilmore and Neil Bishop and is the 20th Hamlet ad to either win or claim the runner-up prize at the Aerial Awards.
"Fondue features the voice of a man phoning a friend to excuse himself from a planned birthday fondue party, which will be attended primarily by bankers.
The man feigns disappointment, claiming that although he'd love to attend, he can't because his partner's sister is over from New Zealand on the day of the party.
He finishes his excuse by remonstrating: "Typical isn't it, any day except Thursday! Only to be told that the party is actually on Wednesday. This is followed by the sound of a match being lit and Hamlet's traditional piano sweep.
The Radio Advertising Bureau Aerial Award, supported by Campaign, was judged by Steve Spencer and Trevor Kennedy of Scholz & Friends London.
"Fondue was produced by Simon Sole and the sound engineer was Rob Bradbury. It was produced through The Tape Gallery with media planning and buying by Walker Media.
The Hamlet Cigar ads beat work from McDonald's and McVitie's into second place.
The McDonald's ad, for its Jammie Dodger McFlurry, was created by Peter Robertson and Susan Hosking at Leo Burnett.
McVitie's offering, for its Jaffa Cakes brand, was created by Adam Kean and Alexandra Taylor at Publicis.