Seiko Cal. 5642 - 198

The Seiko 5642-198 represents an important milestone in Seiko's 1969 lineup. With its 18mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-634b4140a764]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1969

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