Seiko Cal. 4431 - 425

The Seiko 4431-425 represents an important milestone in Seiko's 1976 lineup. It features a Cream dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-a620a3376598]

Also known as: Sumo, Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1976

Related Models

• Seiko 6317-952
• Seiko 6139-922
• Seiko 0749-414
• Seiko 6212-915
• Seiko 0753-625
• Seiko 5220-313
• Seiko 0759-327
• Seiko 5251-731
• Seiko 4455-425
• Seiko 6324-245
• Seiko 7141-165
• Seiko 6324-899