Seiko Cal. 6331 - 894

This Hand-Winding model from 1972 features a 39mm Gold-Plated case. It features a Cream dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-5d50c3352a9d]

Also known as: Helmet, Navigator

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1972

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