As the world got accustomed to Seiko's novel and revolutionary Astron technology dominating the market in the late 1960s and early 1970s, Seiko was hard at work on its next innovation to challenge Swiss watch industry dominance, developing the Superior, Grand Quartz, King Quartz and eventually the Type II lines – like this crisp gold 1990 Seiko "Panasonic" (aka Takefu Matsushita Electric Company) Dolce 5E31-6070 dress watch, with its original inner/outer boxes, Seiko 5E31 instructions manual, and warranty paperwork.  Dolce was a high-end Seiko brand of dress watches in 1980's and 1990's. 
 
But why do we call this a "Panasonic" aka "Takefu Matsushita Electric Company" dress watch?
 
Kanji Japanese engravings on this watch's caseback indicate the watch was gifted in May 2000 to a loyal Takefu Matsushita Electric Company (changed to Panasonic in 2008) employee to commemorate their 20 years of service to the firm.
 
Takefu Matsushita Electric Co., Ltd. (パナソニック ホールディングス株式会社) was a highly specialized manufacturing subsidiary of the Japanese electronics giant Matsushita Electric Industrial Co. (which officially changed its name to Panasonic in 2008).  Located in Takefu City (now part of Echizen City) in the Fukui Prefecture of Japan, the company was primarily known for specializing heavily in industrial and automotive micro-engineering.
 
The company’s primary manufacturing output included high-precision electric micro-motors, heavy-duty power generators, and Electric Power Steering (EPS) motors for vehicles, as well as in later decades, its development of technologies that transitioned heavily toward supplying critical components – such as drive motor stators and rotors - for Hybrid Electric Vehicles (HEVs) and Electric Vehicles (EVs) used by major automakers like Subaru and Nissan.
 
Matsushita was part of the fabric of the postwar Japanese economic miracle, producing affordable household goods for a new middle class.  Its products were produced under several brand names, including National, used in Japan, and Technics, used globally on high-end audio electronics.  In many cases the brands are better known than the company, especially overseas.
 
Today, Panasonic Holdings Corporation, colloquially known as Panasonic, is a Japanese multinational electronics manufacturer, headquartered in Kadoma, Osaka, Japan.  It produces a wide range of products and services, including consumer electronics, rechargeable batteries, automotive and avionic systems, industrial equipment, as well as home renovation and construction.
 
As of 2025, Panasonic employed  approx. 184,000 staff and around 500 subsidiaries throughout the world.  As of the same year, Panasonic had total revenues of ¥8.46 trillion yen (approx. $55 billion).  The company invested a total of ¥478,216 million in research and development (approx. $3.1 billion).  In 2025, Panasonic held a total of approx. 95,000 patents worldwide, and was the world's top patent applicant for three decades, from the 1980s through the 2000s.
 
The company was founded by Kōnosuke Matsushita in 1918 as Matsushita Electric Housewares Manufacturing Works and incorporated in 1935 as Matsushita Electric Industrial Co., Ltd. with some of its earliest products being radios, electric irons and bicycle lamps, under the National brand name.  During wartime, Matsushita launched and made military components such as ships and aircraft for the Japanese state.
 
By 1950, the company's assets were unfrozen and went public, and Matsushita became known for consumer appliances, black-and-white televisions and transistor radios.  In addition to National, the Panasonic brand name was first adopted in 1955 for export markets and later still also created the Technics brand for audio equipment.
 
During the late 20th century, the company overtook Philips to become the world's largest manufacturer of consumer electronics.  Matsushita had also been the majority owner of the Victor Company of Japan (JVC), and briefly from 1990–95 also owned the American media entertainment giant MCA Inc..  In 2008, the company divested its JVC subsidiary, discontinued its National brand in Japan, and changed its official corporate name from Matsushita Electric to Panasonic Corporation.
 
And the Seiko quartz movement at the heart of this gold watch? 
 
1969 was one of the most spectacular in Seiko’s storied history. That year, it released the world’s first automatic chronograph, the Calibre 6139 and the V.F.A. (Very Fine Adjusted) movement – which delivered Seiko’s highest yet level of precision for a mechanical movement.
 
Seiko would release another first upon the world, the first quartz wristwatch - the Seiko Quartz Astron, which went on to change the way the world told time, and severely tested the dominance of the Swiss, bringing high technology within the reach of all.
 
Powering this gold award dress watch is Seiko's 5E31 quartz movement, introduced in 1987 and used primarily in ultra-thin premium Japan-only (Japanese Domestic Market, or JDM) Seiko dress watches and features a High Accuracy Quartz (HAQ) rating.  Seiko ceased making the 5E31 in the late 1990s, most likely in 1998.
 
This Seiko Dolce dress watch full set comes on its original leather Seiko dress strap, and with rugged travel case, springbar tool, original Seiko 9520 instructions manual, and Seiko warranty paperwork.