Seiko Cal. 0730 - 989

This Spring Drive model from 1974 features a 41mm Gold-Plated case. With its 21mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-ac1bc680e462]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1974

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