Seiko Cal. 6644 - 209

The Seiko 6644-209 represents an important milestone in Seiko's 1968 lineup. With its 22mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-f0d6bf12d584]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1968

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