Seiko Cal. 0731 - 450

The Seiko 0731-450 represents an important milestone in Seiko's 1974 lineup. It features a Green dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-cd79328684db]

Also known as: Helmet, Crown

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1974

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