Aircraft Clock, Jaeger LeCoultre A-10 Chronoflite Elapsed Time Chronograph, US Navy

This is a WWII-era 24-hour 8-Day Aircraft Clock, USN stock number R88-C-570-10, made by Jaeger for use in aircraft of the US Navy, such as the PBY Catalina, TBM Avenger, and F4U Corsair.  Known as the Jaeger LeCoultre A-10 Chronoflite Elapsed Time Clock, this version has the functions of Elapsed Time, Center Seconds Chronograph, and Civil Date Function. A colleague offers this explanation of its operation: The button on the right starts the large sweeping hand (seconds) and the lower dial (minutes, counterclockwise). If you press the right button again, the timer will stop. Then press it again and it will reset. The other timer is more interesting and very convenient.Push the left button. When the top flag is red, and the bottom flag is red, the top timer is running (minutes, hours). To pause the top timer rotate the center knob until the bottom flag is white. To resume the top timer, rotate the center knob until the bottom flag is red again.When you’re done with the top timer press t