The Seiko 7610a "Fly Back" Chronograph Movement

Technical, movement information, How to's, Why's, service, parts, tool sources and more.
User avatar
tempusmaximus
Senior Forumgod
Senior Forumgod
Posts: 19245
Joined: Tue Apr 23, 2013 1:37 pm
CW-watches: 1
Location: UK

The Seiko 7610a "Fly Back" Chronograph Movement

Post by tempusmaximus »

Produced between 1972 and 1977 the cal.7016a was one of Seiko's most technically interesting calibres.What makes this calibre unique in the Seiko range is that both chronograph registers share the same subdial a "2 in 1 " chronograph .

http://thewatchspotblog.com/?p=232

Image

Image
Bernie
User avatar
tikkathree
Trusted Seller
Trusted Seller
Posts: 7363
Joined: Fri Jan 24, 2014 12:21 am
CW-watches: 1
Location: East Anglia - arr 'aas right buh

Re: The Seiko 7610a "Fly Back" Chronograph Movement

Post by tikkathree »

Articles like this I am eternally grateful for because they confirm that, beyond the word clockwork, I have not the faintest idea what's actually happening inside a watch or clock.

Something stores energy which, when released, drives toothed gears which cause the hands to point in the right place at the right time, right?

I'm not sure which I find the more impressive, clockwork technology worked up when we had only hand tools and primitive technology at our fingers, or the phenomenal microprocessing stuff which goes on inside a quartz watch.
C60 MKI, MKII, MKIII: "some",
C6 & C60 Kingfishers,
C600 Tritechs,
C63 "some",
C65 "some",
C4, C40, C8, C9, C3, C5, C20 & 23FLE
Some other brands
  • Similar Topics
    Replies
    Views
    Last post