Seiko Cal. 4451 - 769

This Spring Drive model from 1978 features a 44mm Gold-Plated case. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-9248a12c95b9]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1978

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