One thing Hamilton did very well in the 1950's and 60's is create unique and futuristic designs. Perhaps inspired by the space program or sci-fi movies, these innovative watches were often in the family of "asymmetrics". Asymmetric watches are not a uniform shape or might have different lug designs on top and bottom, etc.
Many of the coolest asymmetric designs are electric watches but there are quite a few mechanical and automatic models as well.
One example of a mechanical asymmetric is the 1960 Sea Ranger. Although the crystal and dial is oval shaped, the top of the watch is a differently shaped than the bottom of the watch.
Produced from 1960 through 1962, the Sea Ranger came with Hamilton's 12/0 sized, 22 jewel 770 movement under the hood. It's actually a fairly large watch. The "weather proof" aspects of the watch come from the case design and gasketed crown. The two piece case opens from the front and the stem is a two-piece design.
I've only had one example and I tried to change the crystal in it three times. The crystal appears to be press fit into the bezel and after cracking three crystals I finally gave up and put the old one back in.
It's a sharp looking watch and collecting all of the mechanical asymmetric models would be a fun but expensive challenge.
Thanks for visiting my vintage Hamilton watch blog. I like to restore US-made Hamilton wrist watches back to their original glory and share my experiences with other enthusiasts. Use the "Search" space below if you know what model you're looking for. Feel free to leave polite comments or questions in the spaces provided. Also check out my "watches for sale" on my Etsy site - the link is on the right, just below.