Seiko Cal. 6391 - 488

The Seiko 6391-488 represents an important milestone in Seiko's 1990 lineup. With its 18mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-97441ab2b42c]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1990

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