Seiko Cal. 6188 - 427

The 6188-427 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-3f3d4e1f3a5f]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1991

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