Chelsea Clock Co., Boston, Mass., 8 days, spring brass lever movement ward or engine room timepiece retailed by The Upson-Walton Co., Cleveland. Serial No. 248566. This example 12/24 model with a secondary hand for Greenwich Mean Time (GMT) referred to as

Chelsea Clock Co., Boston, Mass., 8 days, spring brass lever movement ward or engine room timepiece retailed by The Upson-Walton Co., Cleveland. Serial No. 248566. This example 12/24 model with a secondary hand for Greenwich Mean Time (GMT) referred to as "Zulu" by maritime shipping. The red sections reflect periods of silence observed by radio operators to monitor airwaves for distress signals. Cast brass case with screw off bezel has mellowed down to a soft look. Original silvered dial is overall very nice for it age. Original hands. Not currently running.