Seiko Cal. 4566 - 639

This Spring Drive model from 1982 features a 38mm PVD Black case. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-e8f8b19a1a52]

Also known as: Helmet, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1982

Related Models

• Seiko 6126-146
• Seiko 6245-285
• Seiko 5239-611
• Seiko 0732-519
• Seiko 4516-284
• Seiko 4445-616
• Seiko 6212-450
• Seiko 3831-272
• Seiko 7050-760
• Seiko 4567-979
• Seiko 4447-531
• Seiko 7179-958