The Seiko Almanac · by Tiny Hour Tales
Model reference

Seiko 83BA-090

business (ビジネスグループ) · catalogued in 1968

Case
SS
Jewels
30
List price
¥16,500 (SS·WP·F)
Seiko 83BA-090 as pictured in the Seiko JDM Catalog No.1, page 3
From the 1968 Seiko catalogue, page 3View Page

Identifiers

Case–dial code
807-813

From the catalogue

Case
SS
Jewels
30
Water resist.
WP
List price
¥16,500 (SS·WP·F)
Specs
automatic · day-date (day spelled out at 9)

ビジネスA (Business-A); 自動巻; the same symbol and number is also printed for a different watch: p.4 27石 (900-902)

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