Please could somebody help me. I have inherited a pre 1940 and probably earlier watch that does not work. I gather it is one of the earliest types of chronograph. I cannot read the model/make on the front of the watch due to the position of the hands I cant move. The model starts with an A.Taking of the cover it says it is stainless steel in french, and is made by the Mana(perhpas Nana) watch Co ltd in Geneve, Suisse. The modsel number is 2300-31
There are two smaller dials on the face, one showing to 60 , the other looks like 45
There is aslo a red scale around the outside that has a revoultion of the face in 20 even steps. Outside of that there is a another ring of numbers in blue but I cannot read those.
Can somebody help me ?