A low intensity, many year search finally yields an acceptable example of a Signal Corps watch. These were supplied by several manufactures, Omega, Tissot, Vacheron, Moser & Cyma among them. I cribbed a likely spec from member "montana" over at MWF The Zenith example is 34mm and dates to 1919-1920. The case no longer has a black finish - in fact I've not seen one that does The enamel dial and the lack of shock protection makes these relatively fragile and not so easy to find in decent shape. This dial is very good however, and the dial lume is well preserved and even. Whoever relumed the hands made a creditable match 12 ligne NVSI Zenith movement within nickled metal case "easily opened without undue prying" artsy shot of Zenith's distinctive snail cam regulator reflected in the inner case lid genuine pigskin wristlet any of you Omega mavens have an Omega or Tissot example?