This is an excellent original piece. Seems to run fine, but this is 80 years old so it probably needs to be oiled/serviced.

Update #1: Someone reached out and suggested that the second hand is also clipped and shorter than original. I don’t know enough to say for sure, but I’m happy to report this as another potential issue in addition to the condition issues below. Condition notes: decent shape, but parts only. The sun-numbers in red are often much more faded. The colors are good. The second hand isn’t firmly attached to center dial. The screw down doesn’t appear original – it’s brown instead of a matching black. One screw (of 3) missing from metal ring holding dial in case. Seth Thomas World War 2 us army air Corps operations room sector […]

Navy, by a mass. Here I have a circa WW l Time Sector clock, The F. Whilton model , dial signed Francis J. Whilton / Brookline Mass. And by Seth Thomas Clock Co. Brass tag identifies F. Whilton Model / Time Sector Clock / U. Navy Bureau of Ordnance / Mark l No. 54 / Inspected JBS 1919 / Made by Seth Thomas Clock Co. I believe case is cast iron with hinged swing out cast brass bezel… Silvered brass dial measures 10″ diameter with 12″ bezel. Sweep second hand is started by depressing left outside push button, and stopped by depressing right button, which has a swing lever which […]

Seth Thomas movement in brass. (only a few hundred were made). Minor superficial scratches barely visibles in front acrylic. It is in working, running condition but need clean service. Back shows GE logo, and a stamped serial number in white. Very good condition, no cracks in bakelite, no key. Original cardboard dial slight wear and tear visible on photos. 26 x 8.5 cms. The following information was taken from. Ben Wrights Exceptional clocks. Army Air Force Sector Clocks The USAAF IXth Air Force operated jointly with the RAF´s 2nd Tactical Air Force in the Allied Expeditionary force from D-Day onwards, and they too used the sector method of plotting aircraft […]