Seiko Cal. 6391 - 630

The Seiko 6391-630 represents an important milestone in Seiko's 1983 lineup. With its 20mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-9c8dd4847393]

Also known as: Sea Horse

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1983

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