Seiko Cal. 6620 - 589

This Solar model from 1979 features a 37mm PVD Black case. With its 20mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-e745744ed72f]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1979

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