Seiko Cal. 6631 - 367

This Automatic model from 1986 features a 39mm Stainless Steel case. Powered by the 6631 caliber with 26j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-20d825709d2a]

Also known as: Rally

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1986

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