Seiko Cal. 5611 - 587

This Spring Drive model from 1979 features a 45mm Stainless Steel case. With its 18mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-7dad23e292d4]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1979

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