Seiko Cal. 5666 - 392

The Seiko 5666-392 represents an important milestone in Seiko's 1984 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-678955a95faf]

Also known as: Sumo, UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1984

Related Models

• Seiko 4453-646
• Seiko 6355-895
• Seiko 4480-529
• Seiko 5249-197
• Seiko 7053-449
• Seiko 0764-974
• Seiko 5222-546
• Seiko 4549-714
• Seiko 5231-259
• Seiko 5649-921
• Seiko 5229-378
• Seiko 3837-284