Part 5: The SEIKO TV-Watch
Guinness Book of Records showed in its 1984 edition the SEIKO TV-Watch
as the "smallest TV set in the world". This is an interesting theory,
since what you can see here, actually does look like the smallest TV by far.
Unfortunately a vital detail is missing: the necessary TV receiver is inside
a box (model no. TR02-01) approximately the size of a Walkman which is
connected to the watch via the cable shown on the photograph. The idea is to put
the cable through the sleeve of your jacket and hide the receiver in the pocket.
Then, just put on the earphone (the cable also serves as an antenna) and you can watch TV
inconspicuously almost anywhere. Only if you were able to recognize anything on
the far too slow and terribly low-contrast liquid crystal display …
The TV-Watch by HATTORI SEIKO CO., LTD (founded way back in 1881) was presented to the public in Tokyo in the summer of 1982 (16th of July or 23rd of September, according to different sources). Some hundred million yen were invested into its development. In the beginning, the TV-Watch was only available in Tokyo and Osaka as DXA001 for 108,000 Yen, later also as DXA002 all over Japan for 98,000 Yen (at that time about 500 and 600 Euro, respectively). Both versions are said to differ only by the case design (the first edition DXA001 had a black outline) and the headphone, the less costly package being only equipped with an earphone.
In the US, the TV-Watch was sold from 1983 onwards. The first (and nowadays hardly available)
version T001-5000 was sold in a silver colored cardboard box, the protective
pouch for the receiver came also in a silver color. The much more
frequently found later version T001-5019 was delivered in a gold colored box. Strangely enough, the obviously highly pessimistic developers
expected the LCD module to last only about seven years ...
Technical details are quickly listed: 1.2" display w/o background lighting ("blue/white", 31,920 pixels, 10 shades of grey, 16.8 * 25.2mm), 5 hours running time on one set of batteries, external tuner for VHF & UHF (channels 2 to 83!) and FM stereo radio reception. The watch in its original function can be "misused" as a stop watch (resolution 1/100 seconds) and as alarm-clock. The flexible 6-conductor cable supplies three different voltages (4, 9 and 13 Volt) and separate signals for video and synchronization. The only optional accessory was the AC adapter TD02. If you're curious about the other features of the TV-Watch, here's a link to the user's manual (PDF, 2.4 MB - with thanks to Olivier Bideau from Le Mans, France).
Extensive technical data can be found on Jochen Huebl's TV-Watch website (in German), you can also see the watch "in action" (AVI/DivX, 2 MB). The website Television History - The First 75 Years has also reserved a chapter for the TV Watch. Connoisseurs of the Japanese language and fans of cute photos will also enjoy the colorful brochure pages, which can be found behind the following links: page1, page2, page3 (about 250 kB each). I only ever found one brochure in English, which advertises the watch under the brand name EPSON (SEIKO and EPSON are a single company since 1985). In July 1983, the magazine Video Review published a field report about the TV-Watch. And in Germany, the electronics magazine ELO (which has ceased to exist a long time ago) reported in October 1982 about this unique high-tech toy. Like in Octopussy, this article showed the prototype of the TV-Watch. The writing "SUWA SEIKOSHA" was replaced by "SEIKO" for mass production and the cable connector was metal covered in the original version.
The retail package included, in addition to all sorts of litterature, and a leather pouch for the tuner and three spare elements for the wristband. The valuable (because no longer available) connecting cable is about 80 cm in length. The watch measures 40 * 49 * 10 mm and with stainless steel wristband and a coin-sized battery (type SR920W) it weighs slightly more than 80 grams, the receiver weighs almost 190 grams with 2 alkaline AAA batteries. The TV-Watch was made in the Fujimi and Matsumoto factories, Japan, from 1982 to 1983.