Seiko Cal. 6642 - 815

This Spring Drive model from 1990 features a 38mm Stainless Steel case. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-aaf8e5107f72]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

27j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1990

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