Seiko Cal. 5633 - 388

Released in 1985, the Cal. 5633 with design code 388 was part of Seiko's domestic market collection. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-e154eb0ed9c0]

Also known as: UFO, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

43mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1985

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