Seiko Cal. 3831 - 205

The Seiko 3831-205 represents an important milestone in Seiko's 1976 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-b79bf787635a]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1976

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