Property was stolen from Flat 6, Regency Court, some time between 11 and 11.15 pm.
The man police would like to speak to is described as five-foot eight inches tall, in his late 20s or early 30s.
He had shortish dark hair and a round face. At the time he was wearing denim jeans, a denim jacket and trainers.
Anyone with information is asked to contact DC Andrew Couzens at Tenby police station on (01834) 842303.