Seiko Cal. 4474 - 727

This Spring Drive model from 1970 features a 36mm Hardlex-Coated Steel case. It features a Cream dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-fccd364840b3]

Also known as: Helmet, Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1970

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