Seiko Cal. 6188 - 678

The Seiko 6188-678 represents an important milestone in Seiko's 1968 lineup. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-f3320fd2f6fe]

Also known as: Rally, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1968

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