Seiko Cal. 5638 - 902

The Seiko 5638-902 represents an important milestone in Seiko's 1989 lineup. With its 20mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-49207ee48226]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1989

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