Silver Oxide 1.55V Watch Button Cells – High Precision for Watches

TITLE 1 — Introduction

Silver oxide button cells are specially designed to power analog and digital watches that require a stable and precise voltage.

Unlike alkaline batteries, Ag₂O technology ensures a steady power supply, guaranteeing the precision of the watch movement and the proper functioning of the complications (date, chronograph, alarm).

👉 Brands shipped as available: Maxell (Made in Japan) or Varta.

TITLE 2 — Technical Specifications

Technology: Silver oxide (Ag₂O)
Type: Non-rechargeable primary button cell battery

Tension nominale : 1,55 V
Plage de fonctionnement : 1,45 V à 1,59 V
Pile considérée usée : < 1,40 V

Technical advantages:

• extremely stable voltage

• low self-discharge

• high precision in watchmaking

• long shelf life

• Consistent performance until the battery is fully discharged

TITLE 3 — Models, Equivalences, and Applications

References included in this fact sheet:

315 – 317 – 319 – 321 – 329 – 335 – 337 – 346 – 357 – 362 – 364
371 – 373 – 377 – 379 – 381 – 390 – 394 – 395 – 396 – 397 – 399

Standards and possible equivalencies:

• SRxxx / SRxxxSW / SRxxxW

• IEC SR

• ANSI / JIS

• Vxxx

• Dxxx

• AG / SG, depending on the manufacturer

Main Applications:

• analog watches

• digital watches

• water-resistant watches

• chronographs

• precision timepieces

👉 Technology recommended by watch manufacturers.

⚠️ Consumable product: warranty does not apply.

Common Applications

• Analog Watches

• Digital Watches

• Water-resistant watches

• Chronograph Watches

• Collectible Watches

• Swiss, Japanese, or European brand watches

• Small precision watch movements

Directions for Use

• Always observe the polarity (+ / -)

• Avoid touching with your fingers (grease = loss of conductivity)

• Replace the battery as soon as delays or stoppages occur

• If you're unsure about the part number, check the old battery or the bottom of the case.

Quality & Reliability Accessories Energy

• ✔️ Individually tested batteries

• ✔️ Recently manufactured

• ✔️ Well-known brands

• ✔️ Professional watch inventory

• ✔️ Ideal for watchmakers, jewelers, after-sales service providers, and discerning individuals