Movement: 7019A, SEIKO Kameido factory, Auto-winding, 21 jewels. Glass: Crystal glass, some scratches. Band: Used, "BEAR" made, it fits for wrist of 19 cm or less. Day/Date: Works fine automatically, also manually (crown pushed), Japanese kanji + English.Japanese kanji inside ring: Rotates fine by the upper crown. Condition: Used, it runs well, +- 1 minute a day. For practical, everyday use, it would be advisable to have the movement cleaned and oiled. "Advan" is described on page 180 of the book "Museum of Japanese made Watches".
Similar watch (7005, not advan) is described on page 38 of the book "Museum of Japanese made Watches". The item "Vintage 1972 SEIKO Automatic watch advan 21J 7019-6050 Rare Calendar Bezel" is in sale since Tuesday, October 22, 2019.
This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Wristwatches". The seller is "saitama_jp" and is located in Saitama. This item can be shipped worldwide.