3 Answers

https://www.youtube.com/watch?v=CInLw82lK1g

The eagle is the Eagle of the Holy Roman Empire (the bishops of Geneva were Princes Of The Empire, link once upon a time) and the Key is link one of the Keys Of Heaven held by St. Peter. The full coat of arms includes, below the shield, the words, "Post Tenebras Lux" (after darkness, light) which was the motto link of the Protestant Reformation.

Lugrin's patents gave Waltham an option for inexpensive reliable and easily-installed chronographs. They link finished stem-wind 14-size movements mainly 1874 and 1884 models with ¾ plates similar to Swiss ebauché movements at their factory in Massachusetts and shipped link them to their sales representatives Robbins amp Appleton in New York where in addition to placing other watches in high-end link gold cases the company worked with Lugrin and Aubert to modify these movements to add complications.