Seiko Cal. 5642 - 668

The Seiko 5642-668 represents an important milestone in Seiko's 1991 lineup. It features a Cream dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-b465c5275897]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1991

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