Seiko Cal. 4477 - 737

This Spring Drive model from 1978 features a 38mm Stainless Steel case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-4cec3d89d017]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1978

Related Models

• Seiko 7048-261
• Seiko 6316-271
• Seiko 6679-270
• Seiko 3848-875
• Seiko 5267-641
• Seiko 7138-876
• Seiko 6215-591
• Seiko 6392-733
• Seiko 7183-157
• Seiko 5232-236
• Seiko 6675-300
• Seiko 5619-383