Chelsea U.S. Navy Ship's Clock Value Guide

The Chelsea U.S. Navy Ship's Clock is a premier example of American precision engineering, serving as a vital navigational tool during the World War II era. These clocks are highly collectible due to their legendary durability and their historical significance as standard-issue equipment on naval vessels.

What affects the value of Chelsea U.S. Navy Ship's Clock?

• The presence of the original key and the functional state of the mechanical movement significantly impact price.
• Condition of the black phenolic or brass case, specifically looking for original patina versus over-polishing.
• Clarity of the dial markings and the absence of chips or cracks in the heavy glass lens.
• Provenance linking the specific serial number to a particular naval vessel or service record.

How to Identify Chelsea U.S. Navy Ship's Clock?

• Look for the 'U.S. NAVY' inscription and a unique serial number engraved on the dial or movement.
• Verify the 24-hour dial configuration, which was a specific requirement for naval operational timing.
• Check for the heavy brass case and a hinged bezel with a screw-down mechanism to ensure a watertight seal.
• Examine the movement for the Chelsea Clock Company hallmark, typically located in Chelsea, Massachusetts.

History of Chelsea U.S. Navy Ship's Clock

The Chelsea Clock Company, established in 1897, became a prominent supplier of precision timekeeping instruments to the U.S. military. Their ship's clocks were essential for navigation and operational timing on naval vessels, known for their accuracy and durability in harsh maritime conditions. This particular model, with its U.S. Navy inscription and serial number, signifies its service during a critical period in American history, likely World War II.