In the next round, the world No.3 will face the surprising Dutchman Tim van Rijthoven (104th) who is playing his first Grand Slam tournament.
Djokovic is aiming for a fourth consecutive Wimbledon title at 35, which would bring him closer to the records of Björn Borg, Pete Sampras and Roger Federer (five in a row).
In the event of a final victory, the Serb would also win his 21st Grand Slam title to return to a length of Rafael Nadal who has 22 after his success in the first two Grand Slam tournaments of the season, at the Australian Open and Roland Garros.
After quickly conceding the first seven games of the game, Kecmanovic ended up winning his face-off.
While Djokovic quietly won his service games, his opponent was put in danger on each of his own, but held until 3-3 when the record holder for weeks at the top of the world hierarchy (373) resumed his march forward by lining up three games in a row.
In the third set, Kecmanovic managed to take his opponent's serve once, but the latter served at 5-4 for the match.
© 2022 AFP