Seiko Cal. 7131 - 162

The Seiko 7131-162 represents an important milestone in Seiko's 1978 lineup. It features a Navy dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-a30f8e31d50c]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1978

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