Seiko Cal. 6131 - 150

This Spring Drive model from 1975 features a 34mm Hardlex-Coated Steel case. With its 21mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-850539399539]

Also known as: Samurai, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1975

Related Models

• Seiko 6126-875
• Seiko 3884-108
• Seiko 6271-456
• Seiko 4533-102
• Seiko 7090-834
• Seiko 6323-918
• Seiko 6664-555
• Seiko 4535-324
• Seiko 4461-890
• Seiko 4552-175
• Seiko 5684-205
• Seiko 6295-442