Seiko Cal. 6623 - 535

This Spring Drive model from 1980 features a 40mm Gold-Plated case. With its 18mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-f17d27c30838]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1980

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