Seiko Cal. 0785 - 284

This Spring Drive model from 1983 features a 37mm Hardlex-Coated Steel case. With its 18mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-c7f09feed4b1]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1983

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