Seiko Cal. 5633 - 399

The Seiko 5633-399 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-3160adf1f328]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

32j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1978

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