SEIKO Majesta 5s42-7A00 quartz movement with a sweeping second hand

Описание: manufacture year: 1989
accuracy: +/- 20 seconds a year
diameter: 34mm, thickness: 7mm, lug width: 18mm
glass: sapphire crystal, case: stainless steel
antimagnetic: 60g, waterproof: 3bar
Suwa logo on the case back

music: Drone in D by Kevin MacLeod (royalty free) http://incompetech.com/

Thank you everyone for all the likes and comments.
This watch is not for sale +
I made this movie when I found sweeping second hand move matches drone music.

(June 17, 2019)
Additional Explanation I
If you want a same watch, seek 'yahoo auction japan' and search the words 'seiko 5s42'.
And searching 'seiko 5s21', you can also find a same sweeping watch without date.
Sometimes they will be put up for the auction. Good Luck!

Additional Explonation II
Mechanical point of view of this sweep system:
In 1989, Seiko engineers published an article on this sweep system in the Journal of The Horological Institute of Japan, vol.129, p.55-64. Title of the article is 'Development of the Viscous− Sweep System'. English abstract of this article says as below:
'This paper describes a new quartz watch driving system we developed. With this system, the second hand of a wrist watch moves smoothly as if it is sweeping. An intermittent movement of the stepping motor is transferred to a smooth sweeping motion due to the spiral spring and the viscous regulator. This system also allows the continued superiority of quartz watches.'

In the J-STAGE (an electronic journal platform for science and technology information in Japan) you can read this article as a PDF file (almost written in Japanese): https://www.jstage.jst.go.jp/article/...