Seiko Cal. 6631 - 622

This Spring Drive model from 1971 features a 43mm Hardlex-Coated Steel case. With its 19mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-64c78fe424fd]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1971

Related Models

• Seiko 5649-279
• Seiko 7179-142
• Seiko 3878-443
• Seiko 7071-102
• Seiko 3871-358
• Seiko 6162-921
• Seiko 5626-523
• Seiko 6259-551
• Seiko 6361-659
• Seiko 6363-882
• Seiko 3833-733
• Seiko 7094-941