Seiko Cal. 6331 - 957

This Solar model from 1977 features a 39mm Titanium case. It features a Champagne dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-489e6f45da53]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1977

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