Seiko Cal. 5638 - 520

Released in 1997, the Cal. 5638 with design code 520 was part of Seiko's domestic market collection. With its 19mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-4cc1bf00d0cb]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1997

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