601 Green Label Oscuro Cigars by Espinosa Cigars The 601 Oscuro Green is generally considered the strongest of the 601 series. Blended by Erik Espinosa and made at AJ Fernandez's San Lotano factory in Nicaragua, the blend features all Nicaraguan tobaccos, with a Nicaraguan Habano Oscuro wrapper. The band has a green background with gold printing, similar to the others in this series. The 601 Green Label Oscuro cigars have received numerous high ratings from from publications from around the global for well over a decade.