Seen an old thread on repairing the clock on the P6 earlier. The repair mainly was about re soldering a connection which was ok on mine. Found the issue how ever, my clock was disconnected by previous owner and the reason was it was constantly trying to re-wind but the little ratchet catch was slipping over the tiny cogs on the drive wheel. They are somewhat worn but what I done was to “sharpen” the edge on the spring loaded ratchet catch with a needle file, not easy but lo and behold, it worked.