The Seiko Almanac · by Tiny Hour Tales
Model referenceCal. 3923

Seiko QMK012

セイコークオーツ (seiko quartz) · catalogued across 1975 · 1976

Case
SS
Dial
blue
List price
¥104,000
Seiko QMK012 as pictured in the 1975 Seiko Catalog Vol.2, page 25
From the 1975 Seiko catalogue, page 25View Page

Identifiers

Caliber
3923
Case–dial code
501-502

From the catalogue

Dial
blue
Case
SS
Strap
19.0 mm
List price
¥104,000
Specs
quartz · SS

Movement code 39SQW; ±5 s/month (38SQW) / ±10 s/month (39SQW·SQC), hacking, day-date EN/JP (SQW); light-pulse seconds end-of-life indicator, cut Hardlex

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