Original WWII Submarine Ships Clock Seth Thomas Azure Control Clock Zig Zag

Original WWII Zig Zag Clock. Clock needs to be reserviced – clock only works for a couple for seconds and hands move – so it probably needs to be reoiled. Does not include anything, just the clock. Photos should show everything. Research indicates that Azure clocks were used by submarines during WWII to zig zag and avoid being detected.