Seiko Cal. 5635 - 197

The Seiko 5635-197 represents an important milestone in Seiko's 1968 lineup. With its 22mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-764bc309f050]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1968

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