Seiko Cal. 5666 - 591

The Seiko 5666-591 represents an important milestone in Seiko's 1978 lineup. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-0a9943be4849]

Also known as: Shogun, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1978

Related Models

• Seiko 0798-535
• Seiko 6264-997
• Seiko 7015-599
• Seiko 6121-368
• Seiko 4465-356
• Seiko 7016-216
• Seiko 4439-754
• Seiko 0796-635
• Seiko 7072-887
• Seiko 0780-734
• Seiko 6621-167
• Seiko 6675-256