I am being assisted in my quest for answers by a very helpful expert from
http://www.horloge-edifice.fr/
Here are some of his thoughts to a number of my questions (slightly edited):
- Any chance that the clock could be Swedish?
Yes, that's possible. I am not familiar with the Swedish clock makers nor industry, so I can't make a reliable statement on that, but that's a possibility.
- Why did Bourla put his name on the dial? Was he the installer?
The most realistic hypothesis at this point is the following : Bourla was a local clock and watch reseller and installer. In particular, he was reselling Omega watches. He installed the turret clock in Nymfaion. The Nymfaion clock, bell and dial was imported by Bourla from various European manufacturers he was in contact with. He put his name on the dial as well as the name Omega, as a kind of advertisement, as he was reselling Omega watches. However, the Nymfaion clock is not from Omega, nor from Bourla himself who just installed the whole thing. This hypothesis is very realistic when I see how turret clocks have been installed in France and in other countries. Installers are very often the local watch resellers and install the turret clock in the local church as a key way to get reputation and identity. They put their name on the turret clock dial as a consequence, although none of the turret clock componants are manufactured by them.
- How exactly do you convert an electric tower clock (with weights) which runs on batteries to a mechanical tower clock (with the same weights) which runs by means of a pendulum?
At that time, "electric" clock means that the weights are automatically rewound using electricity. In other words, instead of having to go in the turret every day to rewind the weights, it is done automatically and electrically. Example :
http://www.horloge-edifice.fr/images/Documents/F0056-Terraillon-Horl1.jpg In other words, at that time, an electric clock still uses a pendulum. It is still mechanical in that sense, except for rewinding the weights.