Seiko Cal. 6644 - 432

The Seiko 6644-432 represents an important milestone in Seiko's 1967 lineup. With its 20mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-eb0919e1f246]

Also known as: UFO, Silverwave

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1967

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