1. Originals are tritium.
2. Never seen it done. I believe it would require custom end links.
3. Never noticed that on mine. No answer other than it is mostly likely something that would be changed during service/ crystal replacement.
4. Recommend looking at sold items on the Bay or other sites.
5. No answer.
Beware of service expense on these movements and the plastic parts they contain. If broken, you may find yourself paying quite a premium. Some watchmakers will not service them at all...
Here is a link to another resource.
http://www.chronomaddox.com/c1045_in_detail.htmlClick to expand...