Seiko Cal. 5638 - 692

The Seiko 5638-692 represents an important milestone in Seiko's 1997 lineup. With its 20mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-923b8bcaf14c]

Also known as: Rally, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1997

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