Seiko Cal. 6642 - 188

The 6642-188 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-af2b3fac8868]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1988

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