Consequently, measuring the time is becoming ever more important; wearing a "chronometer" is chic and collecting watches is in. Electronic watches are doubly attractive: they are modern, and they are reliable in use - provided their power supply is reliable. This is where Varta button cells come in. Whether they are made from silver-oxide-zinc or lithium-manganese, they deliver a constant voltage with minimal self-discharge. They are leak-proof and long-life. Their dependability is your guarantee: with Varta you have time under control.