Seiko Cal. 6364 - 662

This Spring Drive model from 1971 features a 39mm Two-Tone case. With its 18mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-e91e92a0c1eb]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1971

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