Seiko Cal. 3871 - 525

The Seiko 3871-525 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-53483cd578d8]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1968

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