Interesting Quartz

[twhp101]

And to follow up on the previous post, a little light shed on Seiko Twin Quartz movements.

https://www.thewatchsite.com/threads...-alike.171322/

Sent from my TB328FU using Tapatalk

Interesting, thanks for posting.

I have a few twin quartz, mostly 99** I think but I assumed they all worked the same so will have a look later and see which I have.