Seiko Cal. 3894 - 407

This Spring Drive model from 1974 features a 46mm Titanium case. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-f0380e7a5b6c]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1974

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