Seiko Cal. 4437 - 256

This Spring Drive model from 1968 features a 38mm Gold-Plated case. It features a White dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-288c35f647e8]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1968

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