Herman was trained as a graphic and multimedia designer. He started his career as a web designer in Singapore. In 2002 he came back to Indonesia to pursue his passion in advertising and joined OgilvyOne Worldwide. In 2005 he started his own design agency, Pomato Asia. Challenged to start his own watch brand, he started Lima Watch in 2014 and the rest is history.

At Lima Watch, he collaborated with fellow designers from different fields. Conture Indonesia, a design company specializing in concrete development, Ayang Cempaka, Dubai based internationally acclaimed illustrator, Nerdmob, a product designer based in Bandung and Disney Indonesia.

In 2019 Lima Watch won 2 Indonesia Good Design Selection Award for Lima Zenga and Lima Time Loop. Recently Lima Meca 01 was also awarded the 2020 Indonesia Good Design Selection.