Renata's wide assortment of more than 40 different types of watch batteries, mainly of the silver oxide system (1.55 V, offers a suitable power supply for any electronic device that requires an ultra-compact design, of Long-lasting, low-voltage power supply Thanks to her close association with Swiss watch industry standards, Renata has first-hand knowledge of what a high-quality watch should be Battery Support: A relationship of volume/capacity Optimized dimensional accuracy and high retention capacity storage stability at (low self-discharge) excellent level of reliability thanks to high-quality uniformity State of the art is leak-proof thanks to a sophisticated sealing process constant availability, Renata Professional knowledge is worth having on your side and on your watches.