Seiko Cal. 6311 - 566

The Seiko 6311-566 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-4b791070b621]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1975

Related Models

• Seiko 5618-485
• Seiko 4566-775
• Seiko 6184-531
• Seiko 3826-640
• Seiko 4542-417
• Seiko 7154-816
• Seiko 6250-784
• Seiko 0768-426
• Seiko 7045-475
• Seiko 6215-103
• Seiko 7015-993
• Seiko 4582-436