Seiko Cal. 5666 - 601

This Spring Drive model from 1968 features a 44mm Stainless Steel case. Powered by the 5666 caliber with 30j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-6e2cdf8a0f6f]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1968

Related Models

• Seiko 6195-263
• Seiko 6364-211
• Seiko 7040-307
• Seiko 5628-110
• Seiko 6278-718
• Seiko 4521-136
• Seiko 7140-745
• Seiko 0771-147
• Seiko 6198-547
• Seiko 6616-262
• Seiko 0728-301
• Seiko 4515-563