Seiko Cal. 5642 - 252

The Seiko 5642-252 represents an important milestone in Seiko's 1980 lineup. With its 22mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-8a3fbf4382ae]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1980

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