Seiko Cal. 6331 - 422

This Automatic model from 1976 features a 39mm PVD Black case. It features a Champagne dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-943bbd1c7b17]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1976

Related Models

• Seiko 4537-919
• Seiko 4471-512
• Seiko 6319-912
• Seiko 4532-893
• Seiko 0757-172
• Seiko 4458-675
• Seiko 5216-465
• Seiko 3846-996
• Seiko 6144-758
• Seiko 0788-146
• Seiko 3888-302
• Seiko 7180-625