Seiko Cal. 7187 - 632

The Seiko 7187-632 represents an important milestone in Seiko's 1981 lineup. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-14f4815d6027]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1981

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