Seiko Cal. 4581 - 405

This Spring Drive model from 1981 features a 34mm Hardlex-Coated Steel case. Powered by the 4581 caliber with 34j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-03f283c7a22c]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1981

Related Models

• Seiko 0755-468
• Seiko 4494-674
• Seiko 6178-436
• Seiko 3879-891
• Seiko 4537-372
• Seiko 4549-789
• Seiko 6218-424
• Seiko 7013-333
• Seiko 6214-574
• Seiko 5670-162
• Seiko 5612-926
• Seiko 6257-955