Seiko Cal. 7157 - 383

The Seiko 7157-383 represents an important milestone in Seiko's 1976 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-4465ee8ded1f]

Also known as: Navigator, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1976

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