Seiko Cal. 3811 - 431

This Spring Drive model from 1989 features a 44mm Stainless Steel case. With its 22mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-d807110c3a75]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1989

Related Models

• Seiko 7066-987
• Seiko 6292-834
• Seiko 7046-154
• Seiko 6641-282
• Seiko 4584-778
• Seiko 4521-480
• Seiko 3875-321
• Seiko 4560-288
• Seiko 4494-564
• Seiko 6263-726
• Seiko 4413-708
• Seiko 3846-800