Seiko Cal. 7137 - 381

The Seiko 7137-381 represents an important milestone in Seiko's 1990 lineup. With its 21mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-fc444577c0e8]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1990

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