Seiko Cal. 3820 - 638

The Seiko 3820-638 represents an important milestone in Seiko's 1985 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-27b51666f097]

Also known as: Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1985

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