This watch is part of the "Sustainable Planet" program by ZEPPELIN. The dial is made of sustainable EcoKeramik, a material made from vegetable oil and ceramic particles. The bracelet is made of Bonded Leather - for this the off-cuts of the leather industry are not wasted, but new leather is made from them. The purely mechanical automatic movement has always been a highly sustainable technology and ticks behind a watch crystal made of particularly scratch resistant K1 mineral glass.This watch is part of the "Sustainable Planet" program by ZEPPELIN. The dial is made of sustainable EcoKeramik, a material made from vegetable oil and ceramic particles. The bracelet is made of Bonded Leather - for this the off-cuts of the leather industry are not wasted, but new leather is made from them. The purely mechanical automatic movement has always been a highly sustainable technology and ticks behind a watch crystal made of particularly scratch resistant K1 mineral glass.