Seiko Cal. 6657 - 742

The Seiko 6657-742 represents an important milestone in Seiko's 1973 lineup. It features a Silver dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-08e72c3fbcb4]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1973

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