Seiko Cal. 4438 - 513

This Spring Drive model from 1972 features a 41mm Two-Tone case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-4512e7d51a7c]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1972

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