Seiko Cal. 7131 - 891

The Seiko 7131-891 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-2cc4cf594683]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1982

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