Seiko Cal. 7131 - 831

This Kinetic model from 1999 features a 43mm Stainless Steel case. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-265a6dc387a6]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1999

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