Vintage Waltham Rectangular Tank Watch

Got this vintage Waltham tank watch here. It's a manual wind with that classic rectangular look. The dial is silver with gold-tone numbers and has the little seconds sub-dial at the bottom. The case has some definite patina and wear from over the years, but it gives it character. I put it on a newer tan alligator-grain leather strap. Selling as-is for parts or repair since it's an old mechanical piece and I'm not sure when it was last serviced. cool project for someone who likes old watches.