Seiko Cal. 5666 - 993

This Spring Drive model from 1985 features a 46mm Stainless Steel case. With its 21mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-8bed4291517e]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1985

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