Seiko Cal. 4421 - 823

The Seiko 4421-823 represents an important milestone in Seiko's 1970 lineup. Powered by the 4421 caliber with 20j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-4c9a23629a59]

Also known as: Rally, Arnie

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1970

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