Texas Instruments Collection Watch

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Summary comments provided by Texas Instruments' staff.


S00320   NMAH Catalog Number 1987.0487.079
 
TI number: S00320
Watch - This watch was one of the original prototypes for the TI designed electronic watches. This model was made in 1974 and used only for internal evaluation.

See S00025.

Related material in collection: S00025, 315. Summary comment by: Hector Cardenas, Bill Heye, Clark Williams.

S00321   NMAH Catalog Number 1987.0487.080
 
TI number: S00321
Watch - This is one of the first commercial models of the electronic watch designed and built by TI. It was also available with a gold tone case and band.

The module for the Model 101 watch contained the X-902 IC. The chip design was started in December, 1974; first material was available in early April, 1975, and the first watches were shipped in September, 1975. The LED display was lighted by pressing a button on the side of the watch. A sensor caused a decrease in the display light level when the ambient light level was low.

Related material in collection: S00315. Summary comment by: Hector Cardenas, Bill Heye, Carl Williams.

G00419   NMAH Catalog Number 1987.0487.118.01
 
TI number: G00419
Watch - These two watches were built with remaining parts at the completion of the TI development program for this watch design. The program was completed in the spring of 1974. The watch used a liquid crystal display (LCD) and contained two IC's custom designed for the application.

TI did the development work under contract to Ebauches SA for a project initiated by the Longines Watch Co. A copy of the Longines brochure is in the Artifacts Historical File. The number of watches produced by Longines is not known. Only one watch has a strap. These watches were assembled at TI about January, 1974.

Related material in collection: G00420, 421. Summary comment by: Willis Adcock, Fred Bucy, George Ehni, Tom Hyltin.

G00419   NMAH Catalog Number 1987.0487.118.02
 
TI number: G00419
Watch - These two watches were built with remaining parts at the completion of the TI development program for this watch design. The program was completed in the spring of 1974. The watch used a liquid crystal display (LCD) and contained two IC's custom designed for the application.

TI did the development work under contract to Ebauches SA for a project initiated by the Longines Watch Co. A copy of the Longines brochure is in the Artifacts Historical File. The number of watches produced by Longines is not known. Only one watch has a strap. These watches were assembled at TI about January, 1974.

Related material in collection: G00420, 421. Summary comment by: Willis Adcock, Fred Bucy, George Ehni, Tom Hyltin.

G00420   NMAH Catalog Number 1987.0487.119
 
TI number: G00420
Display, Watch, Liquid Crystal - This item is a complete liquid crystal display (LCD) for the Longines electronic watch. The display used the dynamic scattering mode.

Related material in collection: G00419, 421. Summary comment by: Willis Adcock, Fred Bucy, Tom Hyltin.

G00421   NMAH Catalog Number 1987.0487.120
 
TI number: G00421
Display, Watch, Liquid Crystal - This item is a complete liquid crystal display (LCD) for the Longines electronic watch. The mounting ring is attached to the display. The display used the dynamic scattering mode.

Related material in collection: G00419, 420. Summary comment by: Willis Adcock, Fred Bucy, Tom Hyltin.

G00425   NMAH Catalog Number 1987.0487.123
 
TI number: G00425
Display, Watch, Liquid Crystal - This display was used for the TI analog electronic watch, the "Starburst" model. The display was developed in 1978 and functioned in the twisted nematic field effect mode.

All of the displays for the "Starburst" watches were built by TI.

Summary comment by: Hector Cardenas, Milo Johnson.

G00426   NMAH Catalog Number 1987.0487.124
 
TI number: G00426
Display, Watch, Liquid Crystal - This item is a prototype plastic digital watch LCD built in 1979. It has three and a half seven segment digits functioning in the twisted nematic field effect mode. This display was used for a number of prototype plastic watches but was not put into production.

Summary comment by: Hector Cardenas, Milo Johnson.

S00428   NMAH Catalog Number 1987.0487.125
 
TI number: S00428
Watch - This watch is an example of the first totally electronic quartz LCD analog watch which was introduced by TI in July, 1978. In addition to the time, day and date could be displayed. The combination of several technology firsts made the watch design practical.

Among the technology firsts for this watch were: 1) Use of low voltage liquid crystal material for multiplexed LCD watches displays. 2) Use of a lithium-manganese dioxide cell for watch LCD's. 3) Use of an I2L chip to drive watch LCD's. 4) Use of only 26 contacts for 120 display elements using two-way multiplexing. The watch design, called "Starburst," was manufactured until 1981 when TI closed out all watch activity. For additional information, see the Press Release in the Artifact Historical Files.

Related material in collection: G00425, S00429. Summary comment by: Hector Cardenas, Bill Heye.

G00418   NMAH Catalog Number 1987.0487.139
 
TI number: G00418
Watch Breadboard, Electronic - This breadboard was the first TI working model for an electronic watch using a single IC. It was built by Kiamil (Kim Giontzeneli around August-September, 1973.

The IC type is not known, but it was probably an I2L prede cessor to the X830 which was used in the prototype TI watches in early 1974. (See S00025) The breadboard also has a prototype 3 1/2" digit LED display.

Summary comment by: Willis Adcock, Hector Cardenas, Ed Dupuis.

G00204   NMAH Catalog Number 1987.0487.220
 
TI number: G00204
Photo Available Watch - INFORMATION NOT AVAILABLE

S00025   NMAH Catalog Number 1987.0487.350
 
TI number: S00025
Watch - This was one of the first TI watches and was part of a prototype group used for evaluation. This group was built in mid 1974.

The original watch module was three function and used the X-830 chip and a 3 1/2 digit LED display made up of seven separate element. Modules were sold to Benrus, however production was stopped in October, 1975, when TI decided not to produce this watch. The module design was to expensive to meet the cost objective; the setting procedure was to complex; and the case was not considered a good consumer item.

Related material in collection: S00320. Summary comment by: Hector Cardenas, Bill Heye.

S00315   NMAH Catalog Number 1987.0487.364
 
TI number: S00315
Watch Assembly Display - The display shows the parts and fabrication steps for two TI watches, lady's and man's, in plastic cases. Also shown are five 3" slices illustrating stages in slice processing.

In addition to the slices, the display contains photographs of six different IC chips. The steps from lead frame to plastic module are shown, with two samples molded in clear plastic to show the position of the IC. Module parts, assembled modules, case parts and assembled watches are displayed. The module design and assembly method was common to all TI watches. The X-830 chip was the first TI watch chip and was designed with I2L (Current Injection Logic) technology. It was used in the first TI watch modules (1975) which were sold to Benrus but were not used by TI for watches. The X-902, also I2L, was the next design and was widely used in TI watches, which were introduced in late 1975. It was probably the largest volume chip used. The IC and module design and manufacturing technology not only made possible an electronic watch but provided the means for cost reductions and an accurate very low cost watch.

Summary comment by: Wally Banzhaf, Hector Cardenas, Bill Heye, Clark Williams.



National Museum of American History


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