Seiko Cal. 7138 - 834

The Seiko 7138-834 represents an important milestone in Seiko's 1991 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-edb7020647d1]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1991

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