Greetings! As you all know, I have a soft spot for Citizen's 8110a powered watches and constantly run searches on that bay of evil looking for projects and fixer uppers. If you were looking to add a full gold Challenge Timer to your collection...you might want to find a time machine and go back...

Discovered the following watch online: Very interesting piece, and clearly built on the 8110/8110a movement. But I noticed that the case back is marked 67-5458. Heading over to this post on sweep-hand.org (my usual research starting point for 8110 Citizens) I discovered a section on...

Hey all, currently in possession of two vintage Citizens (both with the 8110 movement) that need quite a bit of work and love to get back into wearable condition. If anyone knows of a good member of the community who could assist/advise on repairs I'd be eternally grateful!

Greetings! I finally finished restoring my 67-9119 for the second time after two years of acquiring parts and working on individual components. This watch is special because it's the first serious vintage piece I bought for myself as a project. I wasn't that happy with the initial restoration in...

WTB: Citizen 8110a chronograph movement [FOUND!] Looking for a working, clean 8110a movement ideally complete, as I need the automatic rotor for one watch, and some movement parts for another. If anyone has one going spare for a reasonable price, please let me know. Thanks...

Greetings, I'm restoring a Citizen 67-9119 with the 8110A movement and I want to clarify a detail that I've read regarding the Seiko 6138. The center wheel pinion is 'D' shaped and the hand 'tube'/post takes that shape when pressed in. Is the 8110A designed the same way? Will I have to reshape...