Seiko Cal. 6617 - 436

The Seiko 6617-436 represents an important milestone in Seiko's 1974 lineup. With its 20mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-229db5413fd1]

Also known as: Monster, Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1974

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