Maxell SR621SW 364 Silver Oxide Watch Battery – High‑Drain, Mercury‑Free Precision Power

Power your watch with long‑lasting accuracy using the Maxell SR621SW / 364 Silver Oxide Battery. Designed for high‑drain performance, this premium Japanese‑made cell is ideal for watches with alarms, backlights, or additional electronic functions. With a mercury‑free construction and stable voltage output, it delivers dependable, consistent power for everyday reliability.

Key Features

• Mercury‑Free Design — Eco‑friendly battery with zero added mercury.

• High‑Drain Performance — Ideal for watches requiring extra power, including models with illumination or alarms.

• Stable Silver Oxide Chemistry — Ensures consistent voltage for precise and reliable timekeeping.

• Made in Japan — Manufactured to exceptional quality standards for long‑term performance.

• Single Blister Pack — Secure, convenient packaging for individual replacements.

Product Details

• Model: SR621SW / 364

• Type: Silver Oxide Watch Battery

• Chemistry: Mercury‑Free

• Drain Type: High Drain

• Packaging: 1‑piece blister

• Country of Origin: Japan

• Also Known As: 364