🇨🇭 Oberwinterthur (Kreis 2) / Zinzikon, Switzerland

Oberwinterthur (Kreis 2) / Zinzikon is a district in Winterthur, Switzerland. It is a landlocked city and does not have any ports or shipyards. However, Winterthur is known for its strong manufacturing industry, including machinery, precision instruments, and pharmaceuticals, which may be of interest to seafarers, shipowners, or crewing companies indirectly involved in these sectors. It has a population of approximately 110,000 people.