Beautiful 10 “Chelsea”
U.S. Shipping Board Clock
Dated 1915-1918

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is a rare and important, antique, eight day clock with an 8 inch face, manufactured for the U.S. Shipping Board in between 1915-1918. The Chelsea Pilot House movement is marked with serial number 129322, which is dating it to that period.


This clock, along with others, was ordered by the U.S. Shipping Board , (USSB), for use throughout its organization. In 1914, the United States’ maritime position had been eroding for decades with some Congressional concern, some remedies actually worsening the situation, with European shipping companies dominating overseas trade and just over 10% of the value of trade carried in U.S. owned ships.[1] The 1916 act was the end result of Congressional efforts to create a board to address the problem dating from 1914.[1] At this time the legislation was not a part of any war effort with specific intent as stated in the act:

“An Act to establish a United States Shipping Board for the purpose of encouraging, developing, and creating a naval auxiliary and naval reserve and a Merchant Marine to meet the requirements of the commerce of the United States with its territories and possessions and with foreign countries; to regulate carriers by water engaged in the foreign and interstate commerce of the United States for other purposes.”[1]

A board of five commissioners was to be appointed by the president with confirmation by the United States Senate as the United States Shipping Board (USSB) to acquire and construct suitable vessels and to create corporations under its control to execute the programs[1] In essence, the USSB was given “complete control over American ships and shipping”.[1]

Here is a link to read more extensively about the history of this organization:

U.S.. Shipping Board                                                                                                Chelsea Clock Ser. No.. 129322


DESCRIPTION: The clock is housed in a heavy forged brass case with easy to use side opening bezel and measures 10 inches in diameter. It has a large 8 inch brass 12 hour dial which is in excellent condition, and the clock has been recently serviced by a master clock smith. The Arabic numerals and inscriptions are acid etched in black. Below the 12 O’clock position is the winding arbor. Next comes the hands arbor that features a Full Moon minute and Full Moon hour hand. The large seconds hand has its own dial and the hand has a Half Moon tail. A Fast/Slow Lever regulator is directly to the top left of the enlarged seconds dial. The precision, 8 Day 11 jewel Model F Pilot House movement, and lever escapement with large seconds dial and serial number date this clock’s manufacture to 1918. It weighs a heavy 13 1/2 pounds. It is keeping excellent time when rated against a quartz comparison watch. A Chelsea key is included.


Full Diameter: 10″
Diameter of Dial: 8″
Depth: 3″
Weight: 13 1/2 Lbs



This stunning Chelsea Clock with its dramatic size makes a memorable gift or as an addition for your den wall or in a collection.Please check out this link: ,   to a custom made Clock Stand that will accommodate this fine clock, allowing for display on a mantel or desk.

Custom Made Clock Stand Available

This fine clock is in remarkable condition and the face shows only the normal patina of age. It has been polished and a lacquer protective coating applied for protection. The movement is bright and clean from just being serviced and keeping excellent time. For best time keeping, it should be wound about once a week.

         Comparative difference in size between a 6 inch and 8 inch clock image
difference in size between a 6 inch and 8 inch clock

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Shipping & Packaging

The cost of shipping, packing, handling, and insurance to your destination, will be calculated point to point and is an additional charge. You may email us to get these costs. We price our shipping honestly, but we expect to be reimbursed for the nominal cost of packaging materials and handling.

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If not completely satisfied with your purchase it may be returned, if without damage, within three days of receipt in its original packaging. Return items must be insured for their full value. Only a prior email authorization by us for the return is required. Shipping charges are refundable if due to our error within the continental United States.

International buyers welcome, but inquire first. We have satisfied customers worldwide.

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Established in 2003

Celebrating 18 Years of Exellence in Nautical Antiques