Seiko Cal. 4437 - 558

The Seiko 4437-558 represents an important milestone in Seiko's 1972 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-3730c3369fd2]

Also known as: Shogun

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1972

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