Seiko Cal. 4577 - 956

This Spring Drive model from 1980 features a 42mm PVD Black case. It features a Champagne dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-51a6b231939d]

Also known as: Navigator, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1980

Related Models

• Seiko 4545-748
• Seiko 4574-812
• Seiko 6133-710
• Seiko 6227-639
• Seiko 5237-179
• Seiko 5217-130
• Seiko 6396-797
• Seiko 5256-586
• Seiko 6211-561
• Seiko 6621-416
• Seiko 4563-368
• Seiko 4457-958