Seiko Cal. 6644 - 571

The Seiko 6644-571 represents an important milestone in Seiko's 1968 lineup. With its 19mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-4fedc55cb0b6]

Also known as: UFO, Bellmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1968

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