Seiko Cal. 6691 - 572

The Seiko 6691-572 represents an important milestone in Seiko's 1993 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-878424e6869e]

Also known as: Bullhead, UFO

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1993

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