Seiko Cal. 4437 - 731

This Spring Drive model from 1967 features a 46mm Titanium case. It features a Champagne dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-7633e87174f7]

Also known as: Shogun, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1967

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