Seiko Cal. 6634 - 764

The Seiko 6634-764 represents an important milestone in Seiko's 1984 lineup. With its 20mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-cfc8ad911c00]

Also known as: Rally, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1984

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