Seiko Cal. 4420 - 873

The 4420-873 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4420 caliber with 21j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-948dcd732c5a]

Also known as: Rally, Bellmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1991

Related Models

• Seiko 4443-928
• Seiko 4483-717
• Seiko 5649-776
• Seiko 6317-103
• Seiko 6677-289
• Seiko 6232-748
• Seiko 4463-590
• Seiko 7076-507
• Seiko 5257-339
• Seiko 6112-950
• Seiko 6685-385
• Seiko 4551-356