Best Coin & Button Cell Batteries for Watch Replacement (2026)
We ranked options by correct size fit, silver-oxide chemistry, pack value, and manufacturer reliability relevant to watch replacement needs
The Verdict
- Best Overall: Renata 371 SR920SW batteries 50-count — Best for frequent replacers: large 50-count packs reduce repurchase frequency and provide consistent silver-oxide performance
- Best Value: 377 SR626SW silver oxide watch battery (100) made in japan — Best for precise fit and eco-conscious buyers: Japan-made SR626SW silver-oxide cells labeled mercury-free and available in bulk
This roundup identifies reliable coin and button cell batteries suited for watch replacement, focusing on fit (size/code) and long-term value. Selections favor silver-oxide chemistries, reputable manufacturers, and pack sizes that reduce frequent repurchasing
Top Picks
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1
Best Overall Renata 371 SR920SW batteries 50-count
Best for frequent replacers: large 50-count packs reduce repurchase frequency and provide consistent silver-oxide performance
Silver oxide 1.55V watch batteries. High capacity retention and leakage resistance with Swiss quality. Customers note good quality and easy installation, with mixed feedback on longevity
- 1.55V nominal voltage
- silver oxide chemistry
- 50-count bundle
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2
Best Value 377 SR626SW silver oxide watch battery (100) made in japan
Best for precise fit and eco-conscious buyers: Japan-made SR626SW silver-oxide cells labeled mercury-free and available in bulk
Silver oxide watch battery 377 SR626SW, 1.55V, mercury-free with high leakage resistance. 100% mercury-free and high capacity retention; suitable for watches and other small devices. Customers note good quality, solid value, and reliable fit
- mercury-free
- 100% leakage resistance
- made in japan, Seiko heritage
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3
Renata 315 SR716SW silver oxide watch battery (50 count)
Best for small-size watches: SR716SW silver-oxide cells in larger counts offer reliable voltage for compact movements
Renata 315 SR716SW is a 1.55V silver oxide battery with 23 mAh capacity and low self-discharge. Customers note good fit and value, with mixed feedback on battery life
- 1.55V nominal voltage
- 23 mAh nominal capacity
- low self-discharge