Seiko Cal. 3831 - 145

The Seiko 3831-145 represents an important milestone in Seiko's 1967 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-bf64f0d5b75c]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1967

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