Citizen 8100A & 8110A Chronographs Instruction & Parts Booklet

I’ve added scans of Citizen’s booklet covering their 8100 and 8110 chronograph movements to the Automatic Chronograph page. It’s in .pdf format so you should be able to download it if you wish. The cover gives two great reference watch images, especially for the band used on the black cased 8100’s:


As a ‘new product digest’, and given the detail it provides including parts diagrams and lists, I presume this was given to dealers in 1972 when these movements were first produced. The link to the booklet will stay on the chronograph page, but here’s the link as well: CitizenChronographBooklet

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7 Responses to Citizen 8100A & 8110A Chronographs Instruction & Parts Booklet

  1. Eduardo Farha says:

    Nice posting, Stephen! A wealthy reference for the Citizen fans!

  2. santijyomaha says:

    Hi Stephen, I have been following your blog for a couple of months and let me a tell you this, you rock! I really enjoy your posts. I woul like to know if you could explain to me by email or by a blog post how do you remove the crhonograph push buttons of these Citizen. I will be trying to bring back to life an old Citizen Bullhead and that is something I don’t have any idea how to do it. Thanks again for this particular post. I am Santiago from Argentina and this is my email (***deleted to protect privacy***)

    • sweephand says:

      Hi, thanks for visiting my blog and for your kind comments, they are much appreciated 🙂 Since htis is a public blog I have deleted your email address since I get to see it privately when I approve your comment.
      Although I am not a watchmaker, I know that that the chrono buttons are held in placed by small ‘circlips’ inside the case. These can be pushed off to free the button, but you must be very careful not to lose the clip if it flies off suddenly! Here’s a pic showing the clip I mean:

      Hope this helps!

    • sweephand says:

      Hi again – that picture was rather poor, so I’ve just done another which shows the clip better:


      • santijyomaha says:

        Hi Stephen, thanks for your answer and for deleting my email adress. And thanks again for the pictures. I’m not a watchmaker either, but I’m trying yo learn while I enjoy it así a hobby. Apart from the complete Bullhead I have a Citizen Chrono case with no movement ir dial. I’ll first try on that one! Thankyou!

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