| Name | Summary | Parent Co. | Child Co. | Is Base Co. |
|---|---|---|---|---|
| Mido | A watch company founded in Switzerland in 1918. Well known for their Multifort line of wrist watch waches which are self-winding, waterproof and shock resistant. Today Mido is part of the Swatch Group . . . | Yes | ||
| Minneapolis Honeywell | Minneapolis-Honeywell was created by the merger of Honeywell Heating Specialty Company and Minneapolis Heat Regulator Company in 1927. (Source Wikipedia) | Yes | ||
| Montgomery Ward | Mail order and department store retailer who marketed some clocks with their name on it. | Yes | ||
| M. S. BENEDICT MFG. CO. | EAST SYRACUSE, N. Y. Maker (or marketer) of cast front clock cases. | Yes | ||
| New England Watch Company | The Waterbury Watch Company was renamed the New England Watch Company in 1898. In 1914 Ingersoll purchased the New England Watch Company. | Yes | ||
| New Haven | Chauncey Jerome (1793–1868) was an important figure in early American clock manufacturing. In 1816 he worked for Eli Terry and made the first pillar and scroll cases (to house wooden movements). In . . . | Yes | ||
| New York Standard Watch Company | Maker of pocket watch movements | Yes | ||
| Pailard Non-Magnetic Watch Company | Pocket watch movements | Yes | ||
| Parker | Maker of alarm clocks in Meridan, Connecticut, ca. 1893 - 1934 | Yes | ||
| Plymouth | Name used by Seth Thomas in the 1930s - 1950s for a lower priced lines of clocks. | Seth Thomas | No | |
| Regent Mfg. Co. | Chicago. Made cast front cases that often housed Western Clock Clock Manufacturing Company or Western Clock Company movements. | No | ||
| Reliance Automatic Lighting Co. | Racine, Wisconsin. Maker of electric time switches, windup and synchronous. | Yes | ||
| Revere | The Revere Clock Company, Cincinnati, Ohio, U.S.A. Made chime and strike clocks using Telechron motors. | Telechron | No | |
| Rockford Watch Company | Maker of pocket watch movements | Yes | ||
| Salem | Salem Clock Company, 75 Van Dyke Avenue, Hartford, Conn, 06114. Maker (reseller?) of nautical clocks, probably made in Germany. | Yes | ||
| Sangamo Electric Company | Original owner of the patents for the Sangamo motors used by Westclox and Seth Thomas. The Sangamo Electric Company was founded in 1899. Made about 40 prototype clocks in 1924 (actually made by the . . . | Yes | ||
| Schatz | This is the base company for Aug. Schatz and Sohnne; Jahresuhrehfabrik, and Gutenbacher Uhrenfabrik (Gufa). Jahresuhrenfabrik (Year Clock Factory) made 400 day clocks starting around 1880 - 1885. . . . | Yes | ||
| Sears | This is the base company for Sears, Roebuck & Company. They sold some Westclox clocks with the Sears name on the dial. | Yes | ||
| Seiko | Founded in 1881, to produce clocks under the name Seikosha. Made watches starting in 1924. (Source Wikipedia) | Yes | ||
| Sessions | Elisha N. Welch was born in 1809 at Chatham, CT. He was a businessman who invested in the foundry and clockmaking business. About 1856 Mr. Welch took over the bankrupt J. C. Brown clock factory and st . . . | Yes | ||
| Seth Thomas | The base company for Seth Thomas. Seth Thomas was born in Wolcott, CT in 1785, went to work for clockmaker Eli Terry in 1807, bought out Terry’s factory (together with Silas Hoadley) in 1810, and . . . | General Time Corporation; General Time Instruments Corporation; Plymouth; Seth Thomas Clock Company | Yes | |
| Seth Thomas Clock Company | Before Seth Thomas was part of General Time | Seth Thomas | No | |
| Stancor | Standard Transformer Corporation, Chicago, Illinois. | Yes | ||
| Sterling Clock Company | Maker of Sterling Electric automobile clocks. Was in Meridan, Connecticut, then bought by Westclox and moved to LaSalle, Illinois. | Yes | ||
| St. Louis Computing Company | A corporation of St. Louis, Missouri. A Stahlberg patent is assigned to this company. | Yes | ||
| Stockham Manufacturing Company | Chicago, Illinois. Some patents for cast front clock cases are assigned to them. | Yes | ||
| Sunbeam | A well-known American appliance maker. Made electric clocks for a while. | Yes | ||
| Swartzbaugh | The Swartzbaugh Mfg. Co. Toledo, Ohio. Maker's name on the Everhot Appliance Timer made by Westclox. | No | ||
| Taylor Instruments | Taylor Instruments was founded in 1851. They made measuring instruments for the manufacturing industry, and altimeters for fighter jets in WWI. They are well known for their thermometers, barometers a . . . | Yes | ||
| Telechron | This is the base company for Warren Clock Co., Warren Telechron Co., etc. as well as General Electric. | General Electric; General Electric Telechron; Revere; Telechron Inc.; Warren Clock Company; Warren T . . . | Yes | |
| Telechron Inc. | Telechron, Inc. ca. the 1950s | Telechron | No | |
| Timex | Brand of popular-priced wrist watches (and a few clocks). In 1922, Waterbury Clock Company purchased the Robert H. Ingersoll & Bro. company. In 1944, Waterbury Clock Co. was renamed U.S. Time Corp . . . | Waterbury Clock | No | |
| Tork | The Tork Clock Company Inc., Mount Vernon, NY. Made clock operated switches. | Yes | ||
| Trenton Watch Company | Maker of pocket watch movements | Yes | ||
| United Clock Company | Founded by Charles Stahlberg, et. al. in 1885. | Westclox | No | |
| United States Watch Company | Maker of pocket watch movements | Yes | ||
| United Time Products | A name Westclox used ca. the 1930s - 1950s on some private label or lower priced clocks. | Westclox | No | |
| Wakmann Watch | Founded in 1946 by Mr. Icko Wakmann. (Source http://shop.wakmann.ch/index.php/history.html) | Yes | ||
| Waltham Watch Company | Produced about 40,000 watches and related items from 1850 to 1957. (Source Wikipedia) | Yes | ||
| Warren Clock Company | Henry Warren's first company | Telechron | No |
