For your consideration is this lovely Hamilton Electric Nautilus wristwatch.
This watch features a 10k RGP case and band. The dial is clean and bright with raised gold-tone Arabic numbers. The stem features a raised H mark for Hamilton. The case diameter is about 37mm.
The band is an attractive 14mm affair and the overall length of the band is about 6 3/4″ with a clasp closure.
The movement is a 505.
This was tested with a battery and does not appear to be running.
Please see the photos for more detail on this classic watch.