Seiko Cal. 4431 - 599

The Seiko 4431-599 represents an important milestone in Seiko's 1970 lineup. It features a Green dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-fa17f6bf121e]

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1970

Related Models

• Seiko 6398-880
• Seiko 7088-885
• Seiko 5211-199
• Seiko 5276-958
• Seiko 0777-318
• Seiko 6623-748
• Seiko 6337-145
• Seiko 4572-827
• Seiko 5698-465
• Seiko 0781-947
• Seiko 7031-685
• Seiko 5617-870