Seiko Cal. 4431 - 398

This Hand-Winding model from 1983 features a 42mm Titanium case. It features a Black dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-b4e0a439021b]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1983

Related Models

• Seiko 5271-358
• Seiko 6615-868
• Seiko 5650-735
• Seiko 4586-108
• Seiko 0712-823
• Seiko 4489-793
• Seiko 5266-828
• Seiko 6346-370
• Seiko 7163-852
• Seiko 3810-216
• Seiko 6219-868
• Seiko 7081-827