Seiko Cal. 6636 - 617

The Seiko 6636-617 represents an important milestone in Seiko's 1988 lineup. With its 21mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-fabdf5f04e74]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1988

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