Seiko Cal. 5644 - 651

The Seiko 5644-651 represents an important milestone in Seiko's 1975 lineup. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-9df5dbfd3b36]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1975

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