Wattimena won the first event he entered as he claimed the 2008 Malta Open by beating Vincent Busuttil in the final. He made his British Darts Organisation debut in a major event at the World Masters and won four games to reach the last 24 where he lost 3–0 to Steve Douglas. In 2014, Wattimena won the German Gold Cup courtesy of defeating Jan Dekker 3–2 in the final. Later in the year he qualified for the 2015 PDC World Championship by winning the Central European Qualifier, concluding with a 6–3 victory over Kenny Neyens. Wattimena entered the event in the preliminary round and narrowly lost 4–3 to Robert Marijanović, missing three match darts in the final leg.