Seiko Cal. 4437 - 186

This Spring Drive model from 1991 features a 45mm Stainless Steel case. With its 21mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-c034240fd4e5]

Also known as: Shogun, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1991

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