Seiko Cal. 7157 - 689

The Seiko 7157-689 represents an important milestone in Seiko's 1976 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-c214e301032b]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1976

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