This square king Seiko 5246-5039 was produced in 1973, The watch has an attractive square case, measuring 40 x 34mm. The watch wears like a ~36-37mm watch in my opinion. The watch has a quickset date and day function, which does work but it does occassionally get stuck slightly. The watch has a hi-beat movement.
The black paint/onyx on the 6, 9 and 12 hour markers is somewhat flaky.
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