Seiko Cal. 4581 - 637

This Kinetic model from 1987 features a 41mm Hardlex-Coated Steel case. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-dd2dd4182c4b]

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1987

Related Models

• Seiko 4481-110
• Seiko 6149-843
• Seiko 4558-780
• Seiko 0781-862
• Seiko 0718-716
• Seiko 7013-393
• Seiko 0742-346
• Seiko 4561-279
• Seiko 0790-479
• Seiko 6179-295
• Seiko 0751-862
• Seiko 3875-147