Seiko Cal. 4440 - 620

The Seiko 4440-620 represents an important milestone in Seiko's 1981 lineup. It features a Black dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-802a8af0e4f7]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1981

Related Models

• Seiko 6376-651
• Seiko 7193-290
• Seiko 3821-368
• Seiko 6634-602
• Seiko 5641-250
• Seiko 6637-640
• Seiko 7015-176
• Seiko 4418-976
• Seiko 3861-858
• Seiko 5259-714
• Seiko 5668-546
• Seiko 3880-317