Seiko Cal. 5638 - 961

The Seiko 5638-961 represents an important milestone in Seiko's 1966 lineup. Powered by the 5638 caliber with 33j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-c7a98e356fac]

Also known as: Pogue, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1966

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