Seiko Cal. 6644 - 206

The Seiko 6644-206 represents an important milestone in Seiko's 1971 lineup. With its 21mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-fa78c5be7a0c]

Also known as: Monster, UFO

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1971

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