Seiko Cal. 5634 - 665

The Seiko 5634-665 represents an important milestone in Seiko's 1974 lineup. Powered by the 5634 caliber with 29j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-386aa0ed6799]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1974

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