Seiko Cal. 6390 - 690

The Seiko 6390-690 represents an important milestone in Seiko's 1990 lineup. With its 21mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-d9eecd5837ca]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1990

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