Seiko Cal. 6391 - 759

The Seiko 6391-759 represents an important milestone in Seiko's 1987 lineup. With its 21mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-c8eca22db5a7]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1987

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