Seiko Cal. 5230 - 373

This Spring Drive model from 1969 features a 35mm Hardlex-Coated Steel case. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-38513186ea3d]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1969

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