Seiko Cal. 4420 - 945

The Seiko 4420-945 represents an important milestone in Seiko's 1991 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-f54ee10b02ab]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1991

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