Seiko Cal. 4576 - 581

Released in 1986, the Cal. 4576 with design code 581 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-07a0dbb9a8cb]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1986

Related Models

• Seiko 6252-740
• Seiko 4523-775
• Seiko 5666-314
• Seiko 6149-824
• Seiko 4449-465
• Seiko 5686-524
• Seiko 5248-613
• Seiko 5273-214
• Seiko 0774-162
• Seiko 6676-502
• Seiko 6126-417
• Seiko 6211-606