#Seiko

How to change the battery in a Seiko 7C46 or 7C43 quartz watch.

00:00 Introduction
00:17 Removing the watch caseback
02:53 Removing the battery cover
04:28 Changing the battery
05:10 Replacing the battery cover
06:19 Changing the caseback gasket
07:05 Replacing the watch caseback

This watch is the 7C46-7011 (SBBN007) Seiko Professional "tuna".
Note this method also works on the Seiko 7C43 movement.

Get more details about this movement including links to the technical guides here:
https://mizeni.com/movements/seiko-7C...

You can see a short tour of the 7C46-7011 used in this video:
   • #Seiko 7C46-7011 (SBBN007) "tuna" div...  

And related to this, here's a video showing how to remove the stem on a Seiko 7C46 or 7C43 movement:    • #Seiko 7C46 & 7C43 "tuna" watches: Ho...  

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About Mizeni:

I love Japanese watches, in particular Seiko. This channel shows a few of the watches I’ve owned, and I run a website with details of hundreds of Seiko movements:
https://mizeni.com/?ref=youtube

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