Seiko Cal. 4581 - 998

The Seiko 4581-998 represents an important milestone in Seiko's 1979 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-096755c9c308]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1979

Related Models

• Seiko 6362-130
• Seiko 7156-505
• Seiko 5292-593
• Seiko 5237-537
• Seiko 3831-433
• Seiko 3850-569
• Seiko 6124-762
• Seiko 6133-834
• Seiko 0776-759
• Seiko 7171-653
• Seiko 5260-456
• Seiko 6350-276