Seiko Cal. 7158 - 103

The Seiko 7158-103 represents an important milestone in Seiko's 1978 lineup. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-62ad9cd14f2a]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1978

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