Seiko Cal. 4420 - 351

The Seiko 4420-351 represents an important milestone in Seiko's 1984 lineup. Powered by the 4420 caliber with 29j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-2e16696f7371]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1984

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