Maxell 319 SR527SW Silver Oxide Watch Battery 1.55V Mini Jewelry Watch

Elegant diminutiveness for the finest watchmaking – the Maxell 319 SR527SW silver oxide watch battery, with a diameter of only 5.8 mm and a height of just 2.7 mm, is the perfect power source for ultra-thin and delicate women's watches, minimalist smartwatches, and high-quality jewelry watches. This extremely compact button cell delivers a stable 1.55V voltage, making it ideal for all watches where space-saving and elegant design are paramount.

As a product of Maxell, a world-leading battery manufacturer, this cell is produced to the highest Japanese quality standards and boasts a leak-proof design, extremely stable voltage curves, and long runtimes. The silver oxide chemistry (Ag2O) guarantees more consistent performance throughout its lifespan—no sudden voltage drop like with alkaline cells—making it the preferred choice for high-quality and elegant watches. With numerous compatibility designations (319, SR527SW, SR64, and others), this cell is a safe and reliable solution for watchmakers, jewelers, and discerning watch enthusiasts worldwide.

Key features:

• Maxell 319 SR527SW silver oxide watch battery, 1 piece in blister pack

• Chemistry: Silver oxide (Ag2O) – stable voltage and long runtime for elegant watches

• Nominal voltage: 1.55V – constant supply for precise quartz movements

• Ultra-compact dimensions: diameter 5.8 mm, height 2.7 mm – perfect for jewelry watches

• Made in Japan – Maxell quality manufacturing with internationally recognized standards

• High reliability and excellent leak-proofness thanks to optimized sealing.

• Specifically designed for elegant ladies' watches and jewelry watches

• Very stable voltage curve – constant power output throughout the entire operating period

• 0% mercury – modern, environmentally conscious silver oxide technology

• Original Maxell brand product – recognized and appreciated worldwide

• Wide compatibility: 319, SR527SW, SR527, SR64 and other equivalents

Advantages & Applications:

• Ultra-elegant women's watches: Delicate designs with minimal space requirements – perfect energy supply

• Jewelry watches & luxury models: High-quality watches with the smallest dimensions

• Minimalist smartwatches: Elegant digital watches with a slim design

• Vintage watches & classics: Restoration of elegant vintage models with original 319 format

• Wristwatches with rhinestones & decoration: Watches with limited space for battery compartment

• Wellness & Fashion Watches: Stylish models in the elegant design segment

• High-quality gift watches: Elegant presents for special occasions with a constant power supply

• Professional watchmakers & jewelers: First choice for the repair and maintenance of elegant watches

• Collector clocks: Rare and high-quality models with special battery requirements

• Medical clock instruments: Mini timepieces in clinics and laboratories

• Long-term stability: Silver oxide chemistry prevents voltage drop over months and years.

• Safe storage: Long shelf life without leakage or loss of function