Seiko Cal. 7138 - 135

The Seiko 7138-135 represents an important milestone in Seiko's 1973 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-92e1ca6d3e91]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1973

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