Seiko Cal. 6641 - 696

This Spring Drive model from 1972 features a 39mm Stainless Steel case. With its 22mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-ed8aa11ad447]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

26j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1972

Related Models

• Seiko 6222-483
• Seiko 6367-798
• Seiko 6617-462
• Seiko 0782-996
• Seiko 4517-239
• Seiko 3810-454
• Seiko 7040-171
• Seiko 4421-162
• Seiko 4439-914
• Seiko 0741-895
• Seiko 6172-553
• Seiko 4438-297