Seiko Cal. 5661 - 475

This Spring Drive model from 1967 features a 42mm Gold-Plated case. Powered by the 5661 caliber with 28j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-e82d9193223f]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1967

Related Models

• Seiko 0745-972
• Seiko 5691-914
• Seiko 6177-698
• Seiko 6229-579
• Seiko 6331-494
• Seiko 0789-179
• Seiko 7029-299
• Seiko 3859-286
• Seiko 5255-914
• Seiko 6362-120
• Seiko 5290-585
• Seiko 5690-164