Seiko Cal. 4420 - 373

Released in 1981, the Cal. 4420 with design code 373 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-ee7805af3ca1]

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1981

Related Models

• Seiko 7090-334
• Seiko 7190-756
• Seiko 7146-261
• Seiko 6276-936
• Seiko 5618-567
• Seiko 4513-257
• Seiko 0770-972
• Seiko 3832-497
• Seiko 0779-707
• Seiko 6276-231
• Seiko 7097-678
• Seiko 6688-123