The Seiko Almanac · by Tiny Hour Tales
Model reference

Seiko 51-5D-090

five group (ファイブグループ) · catalogued in 1969

Case
SS
Jewels
27
Dial
silver
List price
¥13,500 (SS・WP) / ¥15,500 (SGP・WP)
Seiko 51-5D-090 as pictured in the 1969 Seiko JDM Catalog No.2, page 16
From the 1969 Seiko catalogue, page 16View Page

From the catalogue

Dial
silver
Case
SS
Bracelet
MB
Jewels
27
Water resist.
WP
List price
¥13,500 (SS・WP) / ¥15,500 (SGP・WP)
Specs
automatic (自動巻) · hacking seconds (秒針規正装置付)

セイコーファイブデラックス (Seiko Five Deluxe); 091 = same watch with the Japanese-language (和) day wheel

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