Seiko Cal. 3813 - 381

The Seiko 3813-381 represents an important milestone in Seiko's 1974 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d1d177bd94c5]

Also known as: Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1974

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