Vitra began reissuing the Nelson Clocks in 1999 and continues to expand the collection with new pieces from time to time.‎ Equipped with high-quality quartz movements, they offer a refreshing alternative to conventional clocks – including a wide selection of different designs to suit almost every taste and fancy.‎ Materials: various types of wood and metal.‎ Product contents: high-quality quartz clock movement, 1.‎5 volt battery included.‎Origin of wood: all wood types from Poland.‎