Seiko Cal. 0783 - 146

This Spring Drive model from 1971 features a 46mm Hardlex-Coated Steel case. With its 18mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-390bdd6ea3f7]

Also known as: Sumo, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1971

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