Seiko Cal. 0774 - 351

This Spring Drive model from 1968 features a 46mm Hardlex-Coated Steel case. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-c5f25b02fdc6]

Also known as: Sumo, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1968

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