Seiko Cal. 6391 - 553

The Seiko 6391-553 represents an important milestone in Seiko's 1970 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-2d5f84060371]

Also known as: Rally, Navigator

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1970

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