Seiko Cal. 5611 - 628

The Seiko 5611-628 represents an important milestone in Seiko's 1971 lineup. With its 18mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-7bb520b1392e]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1971

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