Seiko Cal. 7140 - 631

The Seiko 7140-631 represents an important milestone in Seiko's 1990 lineup. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-0d85ecf35259]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1990

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