Seiko Cal. 6331 - 408

This Automatic model from 1969 features a 34mm Titanium case. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-4bc936ba1b23]

Also known as: Helmet, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1969

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