Seiko Cal. 7137 - 742

This Spring Drive model from 1980 features a 34mm Two-Tone case. With its 19mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-22bcfc04773a]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1980

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