Seiko Cal. 5677 - 742

The Seiko 5677-742 represents an important milestone in Seiko's 1978 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-34472e0677a6]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1978

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