Seiko Cal. 6620 - 180

This Spring Drive model from 1975 features a 41mm Two-Tone case. With its 21mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-19f5ecd6f6d5]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1975

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