Seiko Cal. 6187 - 694

The Seiko 6187-694 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-8b9aafc40cc2]

Also known as: Tuna, Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1978

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