Seiko Cal. 6631 - 577

This Kinetic model from 1985 features a 34mm Gold-Plated case. With its 22mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-c592cb401bc0]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1985

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