The Renata 321 / SR616SW is designed and suitable for watches with chronometers, alarms, or illuminated dials.

Renata batteries provide the right solution for any electronic device that requires a highly compact, long-lasting low-voltage power source. The extensive portfolio includes more than 40 different types of button cells. Thanks to their excellent quality and high reliability, silver oxide button cells are used in medical technology as well as in watches, remote controls, and calculators.

Renata SA is a world-leading manufacturer and supplier of primary and secondary microbatteries and battery solutions. The company Renata specialized in button cells as early as the 1970s. Since 1982, Renata has been part of the renowned Swatch Group SA. Initially, Renata focused on the quartz watch industry. Today, Renata develops and manufactures innovative, cost-effective, and technically advanced products for both wristwatches and industrial applications. Renata: Swiss precision combined with innovative technology.