Seiko Cal. 6642 - 505

This Spring Drive model from 1990 features a 36mm Stainless Steel case. With its 22mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-8d9f88563282]

Also known as: Monster, UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1990

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