[nhoj]

I didn't realize the Skyhawk AT had 2 batteries. Do all EcoDrives have 2 batteries?

I've been wondering what the module on the Skyhawk looks like. Can't find any pictures on the internet and don't want to open my own. I would have picked up this auction for cheap just to see what the insides look like.

 

[nhoj]

The manual refers to a "secondary" battery. I guess that means there is a primary, but I never saw a reference to a primary battery in the manual.

 

[nhoj]

Ask and you shall receive:

http://www.citizenwatch.com/downloads/techguides/U600.pdf

Ask and you shall receive:

http://www.citizenwatch.com/downloads/techguides/U600.pdf

Interesting! I didn't see any pictures of the brains inside, but I will upload into the reference section as the dial and hand setting instructions may be useful to someone in the future.

 

[nhoj]

And did you see the whole section that discusses the procedure for the manual mounting of the hands and the testing of radio controlled sync reception? Cool!!! 8)

Yes I did. I want to nudge my second hand just a smidge and now I am scared to.

I noticed the comments describing a hole for the mechanics of each hand. I suspect this has to do with the calibration of the position of the hand in reference to the internal clock. I wonder if Citizen is using a similar technology to Casio's Tough Movement which uses some kind of LED optics to sense the location of the hand and adjust it to match the reference.