Renata 344 (SR1136SW) — Long-Lasting Silver-Oxide Power for Larger Timepieces

The Renata 344 (SR1136SW) is a silver-oxide button cell designed to deliver extended runtime and stable voltage for larger analog watches and specialized timing devices. Its substantial size — approximately 11.6 mm in diameter and 3.6 mm in height — allows for higher capacity while maintaining the 1.55 V nominal voltage essential for accurate timekeeping.

Core Specifications

• Chemistry: Silver-oxide, mercury-free
• Nominal Voltage: 1.55 V
• Dimensions: ~11.6 mm × ~3.6 mm
• Drain Profile: Low-drain (SW)
• Compliance: RoHS, mercury-free

Understanding SR1136SW

• SR: Silver-oxide chemistry
• 1136: Size family (~11.6 mm diameter × ~3.6 mm height)
• SW: Low-drain application profile

The code ensures the battery matches the physical and electrical requirements of compatible devices.

Advantages of Renata 344

1. Extended Capacity: Larger cell size supports longer service intervals.
2. Stable Output: Maintains regulated voltage for accurate timekeeping.
3. Swiss Precision: Manufacturing consistency ensures reliable fit and performance.
4. Leak-Resistant: Protects movements from corrosion.
5. Environmentally Friendly: Mercury-free construction meets global standards.

Applications

• Larger analog wristwatches
• Desk and travel clocks
• Specialty timing devices requiring higher capacity

Installation Tips

• Verify SR1136SW specification before replacing.
• Handle with care to avoid damage or shorting.
• Inspect gaskets and replace if water resistance is important.
• Ensure correct polarity orientation.

Performance Expectations

In low-drain applications, the Renata 344 offers long intervals between replacements, with a stable discharge profile that keeps devices running smoothly until the end of life.

Storage Guidelines

• Store in original packaging until needed.
• Keep in a cool, dry location.
• Use stock rotation to maintain freshness.

Conclusion

The Renata 344 (SR1136SW) is the ideal solution for powering larger timepieces and devices that demand both extended runtime and precise voltage stability. With Swiss craftsmanship, mercury-free construction, and leak-resistant design, it’s a dependable choice for professional watchmakers and end users alike.