This Gruen Precision arrived with a Speidel USA Twist-O-Flex gold plated bracelet, and first impression was not good. Changing into a leather band improved the appearance a lot.
The case is 32 mm 10K gold filled and stamped inside ‘Cased and timed in USA by Gruen Watch Co’. It opens from the front, the crystal with bezel comes off first, then the dial with movement. The movement is a Gruen Veri-Thin 435 with screw balance, and this I believe should date the watch to the 1940ies rather than the fifties which was my first thought. I would like to get some opinions on this.
Back of 32 mm case is stamped 'Gruen 10K gold filled'.
Case is also stamped 435 with reference to the movement.
The back of the dial has some discoloring, but the movement looks to be in good order.
It may need some polishing, but overall condition is good.