Seiko Cal. 7138 - 259

The Seiko 7138-259 represents an important milestone in Seiko's 1980 lineup. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-1fba3210fece]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1980

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