Seiko Cal. 3874 - 351

The Seiko 3874-351 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-146bd6f90b8f]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1970

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