Seiko Cal. 0713 - 391

The Seiko 0713-391 represents an important milestone in Seiko's 1991 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-0f45dc02bd85]

Also known as: Sumo, Bullhead

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1991

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