Seiko Cal. 4421 - 946

This Solar model from 1979 features a 40mm Two-Tone case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-7927a645c200]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1979

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