Seiko Cal. 4431 - 201

The Seiko 4431-201 represents an important milestone in Seiko's 1981 lineup. It features a Black dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-4ca0cba7b046]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1981

Related Models

• Seiko 6317-847
• Seiko 6176-501
• Seiko 4574-110
• Seiko 6385-130
• Seiko 5642-529
• Seiko 4555-648
• Seiko 5657-975
• Seiko 3899-905
• Seiko 5611-459
• Seiko 7011-959
• Seiko 3887-766
• Seiko 4497-807