Seiko Cal. 4437 - 650

This Spring Drive model from 1995 features a 40mm Gold-Plated case. With its 22mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-42868b1ff3df]

Also known as: Shogun, Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1995

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