zenith warranty your zenith watch has undergone a number of quality ... warranty does however cover your watch for any manufacturing defects over a ... period of three years or five years for watches certified by the cosc official swiss ... the present warranty is valid for watches purchased from zenith authorized ... date of purchase and reference for the watch must be clearly marked on the warranty ... certificate your watch comes with instructions including ... cover normal wear and tear of leather straps or scratches to crystals caused by ... the water-resistant seals on zenith watches must be replaced every 18 months at a ... must be presented with the faulty watch at a zenith authorized customer service ... center whenever possible the watch must be presented to the customer ... any handling or alterations to a watch by a person not holding zenith ...
