to be able to have a good guess at this it would be necessary to see the movement and any numbers or writing on the case.
The only thing that can be guessed from your picture is the fact that the watch is a one button chronograph. Generally this would place it
in the Thirties. The two button chronograph was introduced in the mid-Thirties and was more or less gone by the early Forties, outside of some military watches.
Many manufacturers could have used this dial - assuming if it is a re-dial it has been done in the same style.
It's a cracking looking watch and at that size would be a very nice one to wear.
Here's a Breitling Ad around 1938 showing this style of dial.
This message has been edited by Ubik on 2013-10-23 09:50:45