---
product_id: 508366746
title: "SR621SW Watch Batteries - 2 x Seizaiken 364 Equivalent Cell Button Watch Battery Replacement Kit for Watches with Fitting Guide"
brand: "swift gift uk"
price: "₨3764"
currency: LKR
in_stock: true
reviews_count: 13
category: "Swift Gift Uk"
url: https://www.desertcart.lk/products/508366746-sr621sw-watch-batteries-2-x-seizaiken-364-equivalent-cell-button
store_origin: LK
region: Sri Lanka
---

# Ultra long shelf life High reliability power Includes fitting guide SR621SW Watch Batteries - 2 x Seizaiken 364 Equivalent Cell Button Watch Battery Replacement Kit for Watches with Fitting Guide

**Brand:** swift gift uk
**Price:** ₨3764
**Availability:** ✅ In Stock

## Summary

> 🔋 Keep Time on Your Side with Seizaiken Power!

## Quick Answers

- **What is this?** SR621SW Watch Batteries - 2 x Seizaiken 364 Equivalent Cell Button Watch Battery Replacement Kit for Watches with Fitting Guide by swift gift uk
- **How much does it cost?** ₨3764 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/508366746-sr621sw-watch-batteries-2-x-seizaiken-364-equivalent-cell-button)

## Best For

- swift gift uk enthusiasts

## Why This Product

- Trusted swift gift uk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Risk-Free Purchase:** Simple, no-questions-asked returns for total peace of mind.
- • **DIY Ready with Expert Guidance:** Step-by-step fitting guide included to empower your watch repair skills.
- • **Fits More Than Just Your Watch:** Compatible with multiple battery codes for versatile replacements.
- • **Precision Power from Seiko’s Elite:** Experience consistent, mercury-free energy trusted by a legendary watchmaker.
- • **Double the Backup, Double the Confidence:** Two individually sealed batteries ensure you’re never caught powerless.

## Overview

The SR621SW Seizaiken 364 battery kit offers two premium, mercury-free button cells engineered by Seiko’s trusted battery division. Designed for long shelf life and high reliability, this pack includes a detailed fitting guide and supports multiple battery codes, making it the perfect professional-grade replacement for your watch. Backed by hassle-free returns, it’s the smart choice for maintaining your timepiece’s precision.

## Description

SR621SW Watch Batteries - 2 x Seizaiken 364 Equivalent Cell Button Watch Battery Replacement Kit for Watches with Fitting Guide: desertcart.co.uk: Fashion

Review: Very good quality. - *****! Very good quality! Good price. I recommend!
Review: Excellent batteries and last a long time. - Excellent batteries.

## Features

- SEIZAIKEN - Seizaiken are the battery arm of the prestidious Seiko watch making group. Bringing their high quality standards and years of ultra precision technology to produce a battery with consistent quality, high reliability, zero mercury and long long life.
- 2 BATTERY PACK - You will receive a a set of two SR621SW Seiko Seizaiken 364 batteries seperatly sealed and both with a long shelf life. Ideal to keep a spare in the draw should you ever need to replace.
- REPLACES CODES - SR621SW, 364, D364, V364, SB-AG, 602, 280-34, 080-D29, SR60
- BATTERY FITTING GUIDE - Included with this strip of SR621SW Seiko Seizaiken 364 Batteries is the Swift Gift guide on how to remove your watch back and fit the battery.
- SIMPLE RETURNS - If for any reason at all you where unhappy with your item simply sent it back for a full refund. No quibbles at all. You can click the yellow "add to basket" button with confidence.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BSV7R8HC |
| Best Sellers Rank | 16,177 in Fashion ( See Top 100 in Fashion ) 38 in Watch Batteries |
| Guaranteed software updates until | unknown |
| Manufacturer | Swift Gift UK |
| Package Dimensions | 13.4 x 5.6 x 0.6 cm; 20 g |

## Product Details

- **Battery capacity:** 1300 Milliampere Hour (mAh)
- **Brand:** Swift Gift UK
- **Recommended uses for product:** Watch
- **Unit count:** 2.0 Count
- **Voltage:** 3 Volts

## Images

![SR621SW Watch Batteries - 2 x Seizaiken 364 Equivalent Cell Button Watch Battery Replacement Kit for Watches with Fitting Guide - Image 1](https://m.media-amazon.com/images/I/71wG-Tzt6+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good quality.
*by K***F on 9 December 2025*

*****! Very good quality! Good price. I recommend!

### ⭐⭐⭐⭐⭐ Excellent batteries and last a long time.
*by J***N on 5 December 2025*

Excellent batteries.

### ⭐⭐⭐⭐ Battery
*by R***Y on 5 February 2026*

Ok

## Frequently Bought Together

- SR621SW Watch Batteries - 2 x Seizaiken 364 Equivalent Cell Button Watch Battery Replacement Kit for Watches with Fitting Guide
- SR920SW Watch Batteries - 2 x Seizaiken 371 Equivalent Cell Button Watch Battery Replacement Kit for Watches with Fitting Guide
- SR626SW Watch Batteries - 377 x 2 Seizaiken Equivalent Cell Button Watch Battery Replacement Kit for Watches with Fitting Guide

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**Shop now:** [https://www.desertcart.lk/products/508366746-sr621sw-watch-batteries-2-x-seizaiken-364-equivalent-cell-button](https://www.desertcart.lk/products/508366746-sr621sw-watch-batteries-2-x-seizaiken-364-equivalent-cell-button)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-07*