Seiko Cal. 4420 - 733

Released in 1972, the Cal. 4420 with design code 733 was part of Seiko's domestic market collection. With its 19mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-91bdac42cc74]

Also known as: Pogue, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1972

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