Here is a interesting Breitling chronograph, I take it from 1969? Movement in wonderful condition, also shock resistant Val 5 movement. Can anyone tell me about that odd bow?.

2

4

That does not look like it belongs on that watch.Does it have any military marking on the case?

Mike, I have seen the bow on others of this type, in a way its so out of place it has to be correct wonder if was to make it easier to hold when using the stopwatch.

I am suprised to see it was for the US military.Nice watch Chris

Chronos are my favorite, haven’t been able to many other examples so far, which I suppose is good!.

What you have there is a "MIL-W-5605A WATCH, POCKET, DTU-10/P, NAVIGATION, MASTER TIME" timer. The standard for your timer was first issued on October 5, 1963. I do not know how long it these were being made before these specs were cancelled and replaced by the current model which is standard MIL-W-50717, but I would imagine it would have for many years since they seem to be well made.

Here are a couple of reference pages on your timer: equipment codes Mil specs

Thanks Jim,

These Val 5 are great movements seem well made. This one is keeping great time as is,