Seiko Cal. 5633 - 899

The Seiko 5633-899 represents an important milestone in Seiko's 1970 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-94ef0b6c3702]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1970

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