Seiko Cal. 4422 - 237

This Spring Drive model from 1965 features a 43mm PVD Black case. It features a Black dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-e02e39ec377c]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1965

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