Seiko Cal. 0747 - 508

This Spring Drive model from 1967 features a 36mm Titanium case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-556a057221a1]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1967

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