Seiko Cal. 6691 - 572

The Seiko 6691-572 represents an important milestone in Seiko's 1968 lineup. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-2dd21aafdbb5]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1968

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