Even the clock is moving, when I take off the clock face and look inside, I feel sorry to see the machine continue to move while blackened with soot.
I am surprised that it has been working for over hundred years. 
Whenever I overhaul the clock machines, I can’t help thinking “How analog these are!” And I usually get drunken with its analog state seeing the combination with the time-train and the chime-train working exquisitely. When the time comes, it is several thin steel rods that begin to move to ring the chime. Especially three outstanding rods, which move in millimeters to control the parts at the end of each at the same time. (They are never seen from outside, but they work diligently.) 
They can keep working over hundred years while blacken with soot. They can be expected to live another hundred years with a little help. I feel clocks attractive, which can stay alive forever.

Well, when we assemble the clock machine again after the overhaul, the thing which becomes to be important is adjustment of the machine.
If the adjustment will be done well, there might be nothing else particularly difficult. (Of course, it is assumed that the parts are correctly in their original positions.)

With as many people as possible, I’d like to keep the old clocks alive!　

*It is important to be careful with dealing the spring, it will be next time.