The Maxell SR516SW (317) Silver Oxide Watch Battery is a compact, mercury-free button cell designed to provide reliable power for compatible wristwatches and small electronic devices. Manufactured in Japan, this precision battery uses silver oxide chemistry to deliver a nominal voltage of 1.55V, supporting stable operation in devices designed for this specific battery size.
With a nominal capacity of 12.5 mAh, the SR516SW is designed for compact watch mechanisms and compatible low-power electronic applications. Its small dimensions make it particularly suitable for slim timepieces where space is limited and a correctly sized battery is essential.
Product Specifications
Brand: Maxell
Model: SR516SW
Equivalent battery number: 317
Battery type: Silver oxide button cell
Nominal voltage: 1.55V
Nominal capacity: 12.5 mAh
Chemical composition: Zinc / silver oxide
Diameter: 5.8 mm
Height: 1.65 mm
Approximate weight: 0.2 g
Mercury-free: Yes
Rechargeable: No
Packaging: Single battery in blister pack
Country of manufacture: Japan
The SR516SW is identified as a high-drain silver oxide watch battery by Maxell and is suitable for compatible watches with additional power requirements, such as models featuring a backlight or alarm. Silver oxide technology provides a relatively stable voltage during discharge, helping support consistent operation in precision electronic equipment.
The battery is also known by the replacement code 317. Before purchasing, check the model number printed on the original battery or consult the watch manufacturer's instructions to ensure compatibility. Coin cells that look similar may differ in diameter, thickness, capacity or discharge characteristics.
Supplied in a single-battery blister pack, the Maxell SR516SW is a convenient replacement for watch owners, jewellers and repair professionals who need a compact battery from a recognised manufacturer.
Safety: This is a non-rechargeable button battery. Keep it out of reach of children, do not short-circuit or disassemble it, and dispose of used batteries through an appropriate battery recycling facility. If swallowed, seek immediate emergency medical attention.
