Seiko Cal. 6644 - 709

The Seiko 6644-709 represents an important milestone in Seiko's 1969 lineup. With its 22mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-d17a9f7f6ed4]

Also known as: Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1969

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