I think this one is a 1950 Bruce. It has a 15 jewel 10BC movement with an "L0" date code. I haven't had it very long and have to do some work on it. It will run, but I have to wind it at the ratchet wheel. The stem will pull out and set the time, but pushed in, it turns and doesn't wind.
Nice! Bruce.
Yes, that's a Bruce, Ad is 1950
good match to the Bruce, cool design
I'm good with Bruce. Sure looks like there's two rows of groves on the horizontal bezels in the Bruce ad compared to a smooth rounded horizontal bezel on subject watch. Maybe its just artist trying to show smooth rounded relief of horizontals as per subject watch?
It's an actual photograph of a watch in the ad, and the 'grooves' are light reflections on high points.
I f you look at the sides of the lugged area of the watch in the ad, it is a smooth curve with no indication of grooves. If you look at the OP's watch in the lower frontal pic, the bottom bezel shows the same effect. Just a trick of the light.