Seiko Cal. 4431 - 237

This Spring Drive model from 1979 features a 37mm Gold-Plated case. With its 20mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-13316d6dea5e]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1979

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