Seiko Cal. 7131 - 377

The Seiko 7131-377 represents an important milestone in Seiko's 1979 lineup. With its 19mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-369ad08e30c5]

Also known as: Helmet, Goldfeather

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1979

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