Seiko Cal. 3872 - 256

The Seiko 3872-256 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-1f270a59af23]

Also known as: Helmet, Rally

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1971

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