Seiko Cal. 6311 - 657

This Automatic model from 1974 features a 42mm Gold-Plated case. With its 18mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-e73e12f3bfc1]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1974

Related Models

• Seiko 6657-551
• Seiko 7040-635
• Seiko 0710-476
• Seiko 0718-357
• Seiko 4524-795
• Seiko 4539-884
• Seiko 6178-215
• Seiko 5290-372
• Seiko 5669-376
• Seiko 4438-247
• Seiko 4535-420
• Seiko 4569-913