A very good friend of mine was so kind to send me as a gift this old malfunctioning Seiko 5606-5100, telling me that the movement had some problems, but he had no time to look at it, since his working table was already full of watches to service.
As soon as it arrived, I was immediately in love with it, even if I had never had experience with automatic watches before, focusing on quartz chronographs for my growing collection.
Well, as the old Italian saying goes, “a caval donato non si guarda in bocca!”, so I gladly accepted it and started immediately looking for info on Google finding, though, little to no information, if even images. I did find, though, a couple of images of how it should have looked like when it came out of the factory, in the mid Seventies:
Isn’t it a beauty? Well the watch I received looked quite differently, and even if I didn’t take any pictures of it when it arrived, I still have one photo that my friend sent me:
The watch, apart from a leather worn out strap, had several problems, among which:
When I opened the case back, this is what greeted me: a fairly clean movement…
Rust was barely present, only on the thread of the steel case, where it made contact with the back cover, and some screws were missing, sign it had been serviced, or at least a service attempt was made long ago. Another picture I took of the opened case shows what the real problem with this movement was:
The Balance wheel and the coil attached to it where grossly misplaced, causing the unnatural position of the coil itself. This was probably due to the fact that the Balance bridge was not fixed with a screw at all, as it should have been.
I am not a leather strap fan, so I removed it immediately, and started disassembling the watch, piece by piece, following the technical manual I was lucky to find on the internet.
The beautiful metallic green dial is badly damaged on the bottom right side, as we can see in the following picture:
Removing the dial exposed the day and date wheels, which showed also some abuse…
But once removed the date wheel, the mechanics underneath were pretty much clean:
Following a series of pictures taken while removing the rest of the components and pieces.
And last, but not least, the real culprit: the balance wheel and malfunctioning coil:
I managed to find on eBay the pieces I need to restore to full functionality this Seiko 5606-5100, hoping I will be able to see it ticking again, soon. Wish me luck!