Genuine SEIKO SEIZAIKEN Silver Oxide Replacement Watch Battery 1.55v ALL TYPES

Genuine Seiko Seizaiken silver oxide watch battery — one authentic Japanese cell in the size code that matches your watch.

⭐ At a glance

📏 Available in 13 Seiko sizes: 315, 321, 335, 337, 346, 362, 364, 371, 373, 377, 379, 394, 395

✅ Fits any watch that takes the matching Seiko battery code

✔️ Brand new, fresh stock — genuine Seiko Seizaiken cells, not old dead stock

Chemistry: Silver oxide, 1.55v

Specifications

• Brand: Seiko
• Battery Size: 315, 321, 335, 337, 346, 362, 364, 371, 373, 377, 379, 394, 395
• Type: Coin cell/button
• Chemical Composition: Silver oxide

✅ Fits

Select the size code that matches the battery currently fitted in your watch — Seiko Seizaiken silver oxide cells are made to precise size specifications, so choosing the correct code ensures a proper fit and reliable performance in your movement.

⚠️ Please check the exact code printed on your old battery (or in your watch's manual) before ordering, as silver oxide sizes are not interchangeable between different codes.