Seiko Cal. 4477 - 957

The Seiko 4477-957 represents an important milestone in Seiko's 1967 lineup. It features a Navy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-854df4cbe489]

Also known as: Helmet, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1967

Related Models

• Seiko 5682-100
• Seiko 5685-912
• Seiko 7148-523
• Seiko 6115-690
• Seiko 7130-233
• Seiko 0737-335
• Seiko 6331-264
• Seiko 4489-145
• Seiko 3875-887
• Seiko 7197-468
• Seiko 6681-370
• Seiko 3870-367