Seiko Cal. 6391 - 787

The Seiko 6391-787 represents an important milestone in Seiko's 1988 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-ae8c880e92f8]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1988

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