Seiko Cal. 6642 - 574

This Spring Drive model from 1981 features a 34mm PVD Black case. With its 18mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-ecb223bc829a]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1981

Related Models

• Seiko 7167-368
• Seiko 4583-957
• Seiko 7195-548
• Seiko 6697-361
• Seiko 7079-435
• Seiko 7080-657
• Seiko 5613-968
• Seiko 0778-244
• Seiko 7045-731
• Seiko 0741-831
• Seiko 6229-849
• Seiko 6664-267