Seiko Cal. 6390 - 686

The Seiko 6390-686 represents an important milestone in Seiko's 1967 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-9fe0819257ea]

Also known as: Helmet, Sea Horse

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1967

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