Seiko Cal. 6691 - 548

The Seiko 6691-548 represents an important milestone in Seiko's 1986 lineup. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-18df0fe9498f]

Also known as: Turtle, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1986

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