Seiko Cal. 3831 - 906

The Seiko 3831-906 represents an important milestone in Seiko's 1967 lineup. Powered by the 3831 caliber with 17j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-1de38ebfc5cf]

Also known as: Turtle, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1967

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