SINCERE CO LTD revenue for the last year amounted to 5.96 B JPY, the most of which — 5.90 B JPY — came from its highest performing source at the moment, Contact Lens, the year earlier bringing 5.58 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought SINCERE CO LTD 5.96 B JPY, and the year before that — 5.59 B JPY.