Renata 346 (SR712SW) — Ultra-Slim Silver-Oxide Power for Precision Watches

The Renata 346 (SR712SW) is a Swiss-made silver-oxide button cell designed for precision in low-drain analog watches where ultra-slim dimensions are essential. At roughly 7.9 mm in diameter and only 1.2 mm in height, this battery offers reliable 1.55 V power without adding bulk, making it perfect for delicate and thin timepieces. Its stable discharge curve ensures accurate timekeeping from the moment it is installed until the end of its service life.

Core Specifications

• Chemistry: Silver-oxide, mercury-free
• Nominal Voltage: 1.55 V
• Dimensions: ~7.9 mm diameter × 1.2 mm height
• Drain Profile: Low-drain (SW)
• Compliance: RoHS, mercury-free

Why Choose Renata 346?

When space is at a premium inside a watch case, the Renata 346 delivers the perfect combination of size and performance. It maintains voltage stability for low-drain analog movements, resists leakage that could damage intricate components, and offers long shelf life thanks to its low self-discharge rate. Swiss precision manufacturing guarantees dimensional accuracy and consistent electrical output, making it a favorite among watchmakers worldwide.

Understanding SR712SW

• SR: Silver-oxide chemistry, round cell
• 712: Size family (~7.9 mm × 1.2 mm)
• SW: Low-drain analog watch applications

This code ensures compatibility with devices specifically designed for this footprint, avoiding potential fit or contact issues.

Applications

• Ultra-thin analog watches
• Vintage or collectible slim models
• Specialized timing instruments requiring minimal cell height

Installation and Handling Tips

• Confirm the device specifies SR712SW before installation
• Use non-metal tweezers to avoid shorting the battery
• Inspect caseback gaskets and replace if worn
• Ensure correct polarity when inserting

Performance and Lifespan

In a well-maintained low-drain watch, the Renata 346 can provide consistent performance for its full service interval. Its voltage remains steady until near the end of its life, reducing the risk of timing drift. Combined with professional installation, this cell can help a watch run precisely between routine maintenance intervals.

Storage Recommendations

• Store in original packaging until ready to use
• Keep in a cool, dry place
• Rotate stock according to manufacturing date codes

Conclusion

The Renata 346 (SR712SW) is an essential solution for powering ultra-thin analog watches. With Swiss craftsmanship, mercury-free construction, and leak-resistant design, it offers unmatched reliability for delicate timepieces that require precision and compact power.