This sale is for Rayovac Renata Seiko & Seizaiken silver oxide watch battery's    

Reference 321   (SR616SW),

These are supplied in their original sealed capsule & always within 'use by date'.
 Rayovac are top quality batteries which make them ideal for use in high-quality watches.
Seiko were the first to produce battery watches & battery's, they still are the only Watch Company that make their own battery brand .

Seizaiken are also made by Seiko but tend to be slightly less expensive, up until now, I am not sure why as they have the exact EAN number.

Renata are the Swiss manufacturer. 

 Battery will be shipped same day/next day from payment clearing & we will include a guide on how to fit your battery but if you need any further help please feel free to ask.

NOTE, DO NOT short circuit the + & - terminals, by holding, or using steel tweezers, as this can dramatically shorten their working life, or even flatten the battery, HOLD battery by the sides only.

If you need any further help, please do not hesitate to ask.
Thank you for your time looking & happy buying.