Energizer 364 SR621SW Silver Oxide Watch Battery 1.55V Single Pack

A reliable power source for your precious watch – the Energizer 364/363 SR621SW silver oxide watch battery delivers a stable 1.55V voltage for high-quality wristwatches and precision instruments. This compact button cell, measuring 6.8mm in diameter and 2.2mm in height, is ideal for elegant men's and women's watches, small quartz movements, and other precision applications where reliability in a confined space is essential.

As part of the global Energizer family, with decades of battery expertise, Energizer is known worldwide for high-quality silver oxide batteries that provide reliable, long-lasting performance in demanding timepieces. The silver oxide chemistry ensures more consistent power and longer runtimes than cheaper alkaline cells – ideal for watches that require long-term, accurate timekeeping. With numerous compatibility designations, this cell replaces many common 364/363/SR621SW/AG1 types, offering a proven professional solution for workshops and watch enthusiasts.

Key features:

• Energizer 364 / 363 SR621SW Silver Oxide Watch Battery, 1 piece in blister pack

• Chemistry: Silver oxide – stable voltage and long runtime for watches

• Nominal voltage: 1.55V – constant supply for precise quartz movements

• Capacity: 20 mAh – reliable power reserve for small watches

• Dimensions: Diameter 6.8 mm, Height 2.2 mm – Standard size SR621SW/364

• Manufactured according to Energizer standards – proven international quality

• High reliability and very good leak protection thanks to optimized sealing.

• Specifically designed for watches – suitable for analog and digital models

• Universally applicable in small electronics such as watches, mini-tools and measuring instruments

• 0% mercury – modern, environmentally conscious silver oxide technology

• Energizer brand product – trusted & recommended by watchmakers worldwide

Advantages & Applications:

• Ideal for wristwatches, pocket watches, small quartz movements and specialty watches.

• Can be used in other small devices such as mini-timers, thermometers and measuring instruments.

• Long operating time and stable voltage for precise timekeeping over many months

• Global brand quality – preferred by professional watchmakers

• Direct replacement for many 364/363/SR621SW/AG1/G1 batteries – high compatibility

• Suitable for low to medium load profiles in watches and delicate electronics

• Safe storage and long shelf life without leakage

• Reliable performance in standard, luxury and designer watches

• Saves on costly watch repairs due to long operating life

• Maxi Blister Pack – added security and presentation