Seiko Cal. 3891 - 188

The Seiko 3891-188 represents an important milestone in Seiko's 1969 lineup. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-3e338cffb4a5]

Also known as: Sumo, Rally

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1969

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