Seiko Cal. 6163 - 687

The Seiko 6163-687 represents an important milestone in Seiko's 1991 lineup. With its 21mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-1a5858559d1e]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1991

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