Seiko Cal. 6331 - 889

This Spring Drive model from 1969 features a 40mm PVD Black case. It features a Champagne dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-2c78f7ad33aa]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1969

Related Models

• Seiko 6288-909
• Seiko 0732-636
• Seiko 3896-916
• Seiko 7036-734
• Seiko 3848-954
• Seiko 6398-839
• Seiko 6291-211
• Seiko 0767-741
• Seiko 7031-452
• Seiko 7076-680
• Seiko 6369-247
• Seiko 4525-206