Seiko Cal. 6621 - 866

This Automatic model from 1978 features a 46mm PVD Black case. With its 20mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-b8cfe083e753]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1978

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