Seiko Cal. 3821 - 209

This Spring Drive model from 1972 features a 42mm PVD Black case. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-de390a806248]

Also known as: Emperor, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1972

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