Seiko Cal. 7171 - 731

The Seiko 7171-731 represents an important milestone in Seiko's 1973 lineup. It features a Green dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-dbccd7df582c]

Also known as: Bullhead, Emperor

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1973

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