Boston clock company serial numbers

Marked US Government on Face. Serial Number is It was made in according to a plack attached to the back. Any history available? March 29, at pm. In my 26 years on the Navy, I never saw one like it. It has a pushbutton release for the bezel and the hinge is on top. May 31, at pm. I have a Chelsea Clock co. Case number is B June 6, at am. Can you send this request to me directly at lindsayt chelseaclock.

That way I can look into this for you and easily reply via email. Thanks so much — Lindsay Chelsea Clock. However, if you get this into my inbox I can look into this for you and would love to do so. Thanks so much for your understanding — Lindsay Chelsea Clock. June 27, at am. I bought a Navy deck clock today at an auction. The clock is dated and has the serial on the face of the clock.

Please could you help me identify what ship this deck clock could have been on. Thanks for your time. August 29, at pm. It has the serial Number of E. I would like some information in regards to this clock, if you still have the original assignment given this clock, please let me know.

Terry Cleaveland. September 1, at pm. Please send this inquiry to me directly via email at lindsayt chelseaclock. October 24, at am. December 30, at am. I bought a Chelsea Navy clock Ser no Do you have some information on the piece like the year is has been made, and maybe the ship is was on?

March 27, at pm. It just says U. Navy inder the center pin for the hands. All other faces seem to have mor information like a serial number. Under the 12 is the usual Chelsea Clock Co.

On the back stamped into the brass is the number Can anyone help with the date or model or info why it only has u. February 12, at am. April 3, at pm. Purchased Chelsea Navy Clock E on the black face with a stamped L on the case and on the movement.

Would like to know the history on the clock. May 27, at am. No serial no. This clock has been in our house for who knows how many years. However, in the meantime, would you have a general idea of where this clock may have belonged? June 25, at pm. Hello Greg I have a Chelsea navy clock — E on the back of it is stamped L on the case it has on the movement 6 inch.

How do you not have the studio number ? July 27, at pm. Hello Jeff, According to our manufacturing log, serial is listed as a barograph movement not a clock. It was sold to J. Unfortunately, that is all the information that is available. Navy Dept. However, the movement serial number does not match, which leads us to believe it was taken from another clock case. Unfortunately, that is all the information that we have on this piece.

Thank you! July 31, at pm. Unfortunately, the serial number you have provided does not match any listing in our manufacturing log. If you could provide the serial number stamped on the movement, that may provide more helpful. August 15, at am. Could you give me the name of the ship of the deck clock marked as hereunder on the black clock face please? December 9, at am. Black us navy ships clock ser.

February 5, at pm. Hello my name is kris and I recieved a Chelsea Mark 1 U. Just wondering if you could give me an idea of who purchased this clock originally.

Both these clock and the clocks used by Admiral Byrd for recording temperature, pressure and humidity on his South Pole expedition were specially oiled with low temperature oil before these explorers set out on their adventures. War and Peace or Give us this day our daily bread The Clock Guy, America's Antique Brokerage, uses Chelsea clocks to earn the meager bread required to keep food on the table and shoes on the kids.

Timekeeping is a reality in our family, which has a standing offer to collectors to locate Chelsea clocks for their collections, or assist in sale of Chelsea clocks they own. In addition, we can order new Chelsea clocks on behalf of our clients. During World War I and II Chelsea furnished thousands of clocks to the armed forced for use aboard Liberty ships, submarines, destroyers, cruisers, battleships and aircraft carriers.

Any number of Chelsea special movements were used in connection with fire control mechanisms on battleships and also with dead reckoning tracers. The U. Army still uses many Chelsea clocks in all of its fields of operation to record messages through a message center.

Chelsea was called upon to develop movements that operate under water to record the depth of cable cutters, as well as movements which can be dropped from an airplane at several thousand feet and still operate after striking the water. Today, Chelsea carries on a rather extensive program of development both in its movements, machinery and operations.

Quite a few of the machines used in the Chelsea plant were developed and built right there. More History of Timekeeping Measurement of time has been accomplishment by various means for many centuries. The first periods of division were day and night caused by the revolutions of the earth upon its axis. The sun dial was one of the earliest type of timekeepers. It was used as early as the year B. Sun dials were only practical during the hours of the day when the sun was shining. The desire to mark the hours of the night led to the adoption of the water clock which measured the time by the amount of water which passed through a small hole from one vessel to another.

By keeping the water in the vessel from which the water flowed at a constant level to maintain the same pressure, a fairly accurate indication of the passing hours was given. Sand glasses, or hour glasses as they are commonly known, were first used to measure time in the latter part of the 9th century.

They were made in practically the same form as the hour glass today. These glasses were used for all sorts of purposes from speechmaking to cooking. They were also used at sea for it was important in the early days of navigation to know the speed at which a vessel was proceeding in order so its position could be calculated.

The earliest clock worthy of our modern definition was made by an English monk around the year From the 14th century on clocks were made in principle like the clocks of today but they did not have any dials or hands, but were made to strike the hours on a bell.

Early clockmakers were great artists but very poor mechanics. The timekeepers of three to four centuries ago were masterpieces of design. The makers spent years decorating their cases, but these clock were not very accurate in comparison to the standards of today. As soon as Galileo had discovered the law of the pendulum in the year , he set to work on a timepiece that could make use of his discovery, however it would be almost years before this principle was applied to clocks.

Clockmaking challenges One problem that faced the clockmakers of this era was the lengthening and shortening of the pendulum rod by the expansion caused by the heat and the contraction due to cold.

The immense importance of accurate timekeepers for ascertaining the position of a ship at sea was apparent very early. In , over years after the discovery of America, the king of Spain offered a reward of , crowns for the invention of such a timepiece since a pendulum was impractical at sea. It was more than years later that the first chronometer was invented, and the present type of escapement used in watches and high grade clock was made.

Placing jewels in the bearing of clocks was the invention of the Swiss in , and today the Swiss still furnish most of the jewels used in watches and high-grade clocks. These jewels were mostly sapphires from India and Australia, although today they are almost entirely synthetically made. The earliest American clockmaker was Thomas Harland, who came to this country from England on the ship that carried the tea that was thrown overboard in Boston Harbor in Oct 19, 44 9 8 89 Country.

Reactions: sylvester Levi Hutchins Registered User. Oct 21, 26 Last edited: Jun 9, I think i'll use "ca " as the date for the boston clock. View attachment Chris Radano Registered User. Feb 18, 4, 83 Pennsylvania Country Region.

Great clock, Jere. The tapered wheel crossings on your motion work hour wheel look pretty. Here's Had this one for about 2 years, and hadn't cleaned it. Cherry case with dark stain. I just had the lower glass restored by Linda Abrams, the black border and center were both magenta the last photo before glass restoration.

The movement is signed on the back plate Hard to photo that one. The movement is fastened to the case backboard with a single, large steel screw through the back movement plate. After reading Delaney's description, I erroneously described my as having a cherry case. Cherry is a little more dense. Also, my clock has a similar age crack on the dial bezel as , which would be uncharacteristic for cherry. By , the firm issued a trade catalog illustrating more than 50 different models.

These clocks usually had porcelain dials, and the style and onyx cases used for the mantel clocks, were no doubt imported. Boston Clock Company.