Seiko Cal. 6633 - 677

The Seiko 6633-677 represents an important milestone in Seiko's 1988 lineup. With its 19mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-6dbf2757339b]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1988

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