WS 22: Servicing a SEIKO 7005 including replacing the balance

And this is the part we have just lifted off: the mainspring barrel on the left. Please note that I turned the part over for a better view of it. The top plate which holds the magic lever that we had a closer look at earlier. The magic wheel with the hole is at the bottom of the picture and you can see its axle pointing upward. There is a special spring with a "V-shaped" opening that holds the magic wheel underneath the top plate. After having a close look at this assembly and after having tried to open the "V-shaped" retainer spring of the magic wheel, I decided not to further disassemble the automatic winding system. Again, if you want to see all the parts disassembled, have a look at Rob's page of the 7005. I was just not in the mood to search for a small part like that spring. I had so much luck in the disassembly so far, that I did not wanted to push it further. Again I found this was a legitimate short cut. I am aware that watchmakers might again shake their heads, but on the other side, I really doubt a watchmaker would have read so far ;-)

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