The Seiko Almanac · by Tiny Hour Tales
Model reference

Seiko 88ST-240

stopwatch (ストップウオッチ) · catalogued across 1972 · 1973 · 1974

Case
ACRP
Jewels
7
Dial
white
List price
¥8,500
Seiko 88ST-240 as pictured in the 1972 Seiko Catalog Vol.1, page 135
From the 1972 Seiko catalogue, page 135View Page

Identifiers

Case–dial code
505-523

From the catalogue

Dial
white
Case
ACRP
Jewels
7
List price
¥8,500
Specs
stopwatch

Seiko stopwatch; rowing stroke-rate (pitch) timer (ボート用ピッチ計); coming soon (近日発売)

Appears in

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Not this reference or caliber — simply the Seiko-family watches available today.